Finding the Fourth Proportional to 803,916,220,317.05, 1,206,230,431,922 and 421,369,381,673.21
Calculator
Solution
The fourth proportional to 803,916,220,317.05, 1,206,230,431,922 and 421,369,381,673.21 is: 632,240,721,618.89
Step by Step Solution
- Step 1: Write the proportion equation
803,916,220,317.05 : 1,206,230,431,922 = 421,369,381,673.21 : x - Step 2: Convert to fraction form
803,916,220,317.05/1,206,230,431,922 = 421,369,381,673.21/x - Step 3: Cross multiply
803,916,220,317.05x = 1,206,230,431,922 × 421,369,381,673.21 - Step 4: Simplify right side
803,916,220,317.05x = 508,268,571,254,382,173,093,888 - Step 5: Solve for x
x = 508,268,571,254,382,173,093,888/803,916,220,317.05 - Step 6: Final answer
x = 632,240,721,618.89
Related Problems
Find fourth proportional to 401,958,110,158.53, 603,115,215,961 and 210,684,690,836.61
Half scale
Find fourth proportional to 1,607,832,440,634.10, 2,412,460,863,844 and 842,738,763,346.42
Double scale
Find fourth proportional to 803,916,220,318.05, 1,206,230,431,923.50 and 421,369,381,674.21
Similar ratio
Find fourth proportional to 1,205,874,330,475.58, 1,809,345,647,883 and 632,054,072,509.82
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.