Finding the Fourth Proportional to 666,903,262.31, 920,024,696.62 and 402,500,735.99
Calculator
Solution
The fourth proportional to 666,903,262.31, 920,024,696.62 and 402,500,735.99 is: 555,268,864.99
Step by Step Solution
- Step 1: Write the proportion equation
666,903,262.31 : 920,024,696.62 = 402,500,735.99 : x - Step 2: Convert to fraction form
666,903,262.31/920,024,696.62 = 402,500,735.99/x - Step 3: Cross multiply
666,903,262.31x = 920,024,696.62 × 402,500,735.99 - Step 4: Simplify right side
666,903,262.31x = 370,310,617,518,526,464 - Step 5: Solve for x
x = 370,310,617,518,526,464/666,903,262.31 - Step 6: Final answer
x = 555,268,864.99
Related Problems
Find fourth proportional to 333,451,631.16, 460,012,348.31 and 201,250,368.00
Half scale
Find fourth proportional to 1,333,806,524.62, 1,840,049,393.24 and 805,001,471.98
Double scale
Find fourth proportional to 666,903,263.31, 920,024,698 and 402,500,736.99
Similar ratio
Find fourth proportional to 1,000,354,893.47, 1,380,037,044.93 and 603,751,103.99
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.