Finding the Fourth Proportional to 287,609,132.06, 431,413,698.10 and 199,602,502.46
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Solution
The fourth proportional to 287,609,132.06, 431,413,698.10 and 199,602,502.46 is: 299,403,753.70
Step by Step Solution
- Step 1: Write the proportion equation
287,609,132.06 : 431,413,698.10 = 199,602,502.46 : x - Step 2: Convert to fraction form
287,609,132.06/431,413,698.10 = 199,602,502.46/x - Step 3: Cross multiply
287,609,132.06x = 431,413,698.10 × 199,602,502.46 - Step 4: Simplify right side
287,609,132.06x = 86,111,253,736,282,960 - Step 5: Solve for x
x = 86,111,253,736,282,960/287,609,132.06 - Step 6: Final answer
x = 299,403,753.70
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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.