Finding the Fourth Proportional to 357,468,132.40, 536,202,220.20 and 115,131,036.40
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Solution
The fourth proportional to 357,468,132.40, 536,202,220.20 and 115,131,036.40 is: 172,696,561.56
Step by Step Solution
- Step 1: Write the proportion equation
357,468,132.40 : 536,202,220.20 = 115,131,036.40 : x - Step 2: Convert to fraction form
357,468,132.40/536,202,220.20 = 115,131,036.40/x - Step 3: Cross multiply
357,468,132.40x = 536,202,220.20 × 115,131,036.40 - Step 4: Simplify right side
357,468,132.40x = 61,733,517,331,607,016 - Step 5: Solve for x
x = 61,733,517,331,607,016/357,468,132.40 - Step 6: Final answer
x = 172,696,561.56
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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.