Finding the Fourth Proportional to 319,881,631.92, 479,822,447.88 and 77,544,535.92
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Solution
The fourth proportional to 319,881,631.92, 479,822,447.88 and 77,544,535.92 is: 116,316,803.88
Step by Step Solution
- Step 1: Write the proportion equation
319,881,631.92 : 479,822,447.88 = 77,544,535.92 : x - Step 2: Convert to fraction form
319,881,631.92/479,822,447.88 = 77,544,535.92/x - Step 3: Cross multiply
319,881,631.92x = 479,822,447.88 × 77,544,535.92 - Step 4: Simplify right side
319,881,631.92x = 37,207,609,044,852,992 - Step 5: Solve for x
x = 37,207,609,044,852,992/319,881,631.92 - Step 6: Final answer
x = 116,316,803.88
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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.