Finding the Fourth Proportional to 279,407,042.29, 385,564,345.04 and 153,952,217.62
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Solution
The fourth proportional to 279,407,042.29, 385,564,345.04 and 153,952,217.62 is: 212,444,487.68
Step by Step Solution
- Step 1: Write the proportion equation
279,407,042.29 : 385,564,345.04 = 153,952,217.62 : x - Step 2: Convert to fraction form
279,407,042.29/385,564,345.04 = 153,952,217.62/x - Step 3: Cross multiply
279,407,042.29x = 385,564,345.04 × 153,952,217.62 - Step 4: Simplify right side
279,407,042.29x = 59,358,485,953,531,824 - Step 5: Solve for x
x = 59,358,485,953,531,824/279,407,042.29 - Step 6: Final answer
x = 212,444,487.68
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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.