Finding the Fourth Proportional to 231,578,472.24, 319,578,293.16 and 127,156,544.10
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Solution
The fourth proportional to 231,578,472.24, 319,578,293.16 and 127,156,544.10 is: 175,476,031.66
Step by Step Solution
- Step 1: Write the proportion equation
231,578,472.24 : 319,578,293.16 = 127,156,544.10 : x - Step 2: Convert to fraction form
231,578,472.24/319,578,293.16 = 127,156,544.10/x - Step 3: Cross multiply
231,578,472.24x = 319,578,293.16 × 127,156,544.10 - Step 4: Simplify right side
231,578,472.24x = 40,636,471,327,602,272 - Step 5: Solve for x
x = 40,636,471,327,602,272/231,578,472.24 - Step 6: Final answer
x = 175,476,031.66
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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.