Finding the Fourth Proportional to 157,564,534.72, 217,475,337.12 and 92,395,433.92
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Solution
The fourth proportional to 157,564,534.72, 217,475,337.12 and 92,395,433.92 is: 127,526,972.84
Step by Step Solution
- Step 1: Write the proportion equation
157,564,534.72 : 217,475,337.12 = 92,395,433.92 : x - Step 2: Convert to fraction form
157,564,534.72/217,475,337.12 = 92,395,433.92/x - Step 3: Cross multiply
157,564,534.72x = 217,475,337.12 × 92,395,433.92 - Step 4: Simplify right side
157,564,534.72x = 20,093,728,140,100,684 - Step 5: Solve for x
x = 20,093,728,140,100,684/157,564,534.72 - Step 6: Final answer
x = 127,526,972.84
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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.