Finding the Fourth Proportional to 39,195,678.05, 58,789,715.34 and 11,902,206.91
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Solution
The fourth proportional to 39,195,678.05, 58,789,715.34 and 11,902,206.91 is: 17,852,155.93
Step by Step Solution
- Step 1: Write the proportion equation
39,195,678.05 : 58,789,715.34 = 11,902,206.91 : x - Step 2: Convert to fraction form
39,195,678.05/58,789,715.34 = 11,902,206.91/x - Step 3: Cross multiply
39,195,678.05x = 58,789,715.34 × 11,902,206.91 - Step 4: Simplify right side
39,195,678.05x = 699,727,356,156,681 - Step 5: Solve for x
x = 699,727,356,156,681/39,195,678.05 - Step 6: Final answer
x = 17,852,155.93
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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.