Finding the Fourth Proportional to 319,320,071.91, 440,661,715.82 and 176,265,872.88
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Solution
The fourth proportional to 319,320,071.91, 440,661,715.82 and 176,265,872.88 is: 243,246,913.73
Step by Step Solution
- Step 1: Write the proportion equation
319,320,071.91 : 440,661,715.82 = 176,265,872.88 : x - Step 2: Convert to fraction form
319,320,071.91/440,661,715.82 = 176,265,872.88/x - Step 3: Cross multiply
319,320,071.91x = 440,661,715.82 × 176,265,872.88 - Step 4: Simplify right side
319,320,071.91x = 77,673,621,982,929,472 - Step 5: Solve for x
x = 77,673,621,982,929,472/319,320,071.91 - Step 6: Final answer
x = 243,246,913.73
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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.