Finding the Fourth Proportional to 274,192,952.84, 378,386,274.91 and 156,720,805.34
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Solution
The fourth proportional to 274,192,952.84, 378,386,274.91 and 156,720,805.34 is: 216,274,711.37
Step by Step Solution
- Step 1: Write the proportion equation
274,192,952.84 : 378,386,274.91 = 156,720,805.34 : x - Step 2: Convert to fraction form
274,192,952.84/378,386,274.91 = 156,720,805.34/x - Step 3: Cross multiply
274,192,952.84x = 378,386,274.91 × 156,720,805.34 - Step 4: Simplify right side
274,192,952.84x = 59,301,001,733,497,840 - Step 5: Solve for x
x = 59,301,001,733,497,840/274,192,952.84 - Step 6: Final answer
x = 216,274,711.37
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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.