Finding the Fourth Proportional to 308,487,431.92, 425,713,481.20 and 167,358,651.94
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Solution
The fourth proportional to 308,487,431.92, 425,713,481.20 and 167,358,651.94 is: 230,955,387.33
Step by Step Solution
- Step 1: Write the proportion equation
308,487,431.92 : 425,713,481.20 = 167,358,651.94 : x - Step 2: Convert to fraction form
308,487,431.92/425,713,481.20 = 167,358,651.94/x - Step 3: Cross multiply
308,487,431.92x = 425,713,481.20 × 167,358,651.94 - Step 4: Simplify right side
308,487,431.92x = 71,246,834,326,316,528 - Step 5: Solve for x
x = 71,246,834,326,316,528/308,487,431.92 - Step 6: Final answer
x = 230,955,387.33
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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.