Finding the Fourth Proportional to 52,686,905.92, 78,972,707.04 and 27,129,448.96
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Solution
The fourth proportional to 52,686,905.92, 78,972,707.04 and 27,129,448.96 is: 40,664,487.46
Step by Step Solution
- Step 1: Write the proportion equation
52,686,905.92 : 78,972,707.04 = 27,129,448.96 : x - Step 2: Convert to fraction form
52,686,905.92/78,972,707.04 = 27,129,448.96/x - Step 3: Cross multiply
52,686,905.92x = 78,972,707.04 × 27,129,448.96 - Step 4: Simplify right side
52,686,905.92x = 2,142,486,024,874,713 - Step 5: Solve for x
x = 2,142,486,024,874,713/52,686,905.92 - Step 6: Final answer
x = 40,664,487.46
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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.