Finding the Fourth Proportional to 651,785,745.20, 899,436,948.66 and 369,547,173.18
Calculator
Solution
The fourth proportional to 651,785,745.20, 899,436,948.66 and 369,547,173.18 is: 509,959,575.34
Step by Step Solution
- Step 1: Write the proportion equation
651,785,745.20 : 899,436,948.66 = 369,547,173.18 : x - Step 2: Convert to fraction form
651,785,745.20/899,436,948.66 = 369,547,173.18/x - Step 3: Cross multiply
651,785,745.20x = 899,436,948.66 × 369,547,173.18 - Step 4: Simplify right side
651,785,745.20x = 332,384,381,830,947,776 - Step 5: Solve for x
x = 332,384,381,830,947,776/651,785,745.20 - Step 6: Final answer
x = 509,959,575.34
Related Problems
Find fourth proportional to 325,892,872.60, 449,718,474.33 and 184,773,586.59
Half scale
Find fourth proportional to 1,303,571,490.39, 1,798,873,897.32 and 739,094,346.36
Double scale
Find fourth proportional to 651,785,746.20, 899,436,950.04 and 369,547,174.18
Similar ratio
Find fourth proportional to 977,678,617.79, 1,349,155,422.99 and 554,320,759.77
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.