Finding the Fourth Proportional to 141,868,657.24, 195,789,837.92 and 79,164,470.68
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Solution
The fourth proportional to 141,868,657.24, 195,789,837.92 and 79,164,470.68 is: 109,253,158.41
Step by Step Solution
- Step 1: Write the proportion equation
141,868,657.24 : 195,789,837.92 = 79,164,470.68 : x - Step 2: Convert to fraction form
141,868,657.24/195,789,837.92 = 79,164,470.68/x - Step 3: Cross multiply
141,868,657.24x = 195,789,837.92 × 79,164,470.68 - Step 4: Simplify right side
141,868,657.24x = 15,499,598,883,459,792 - Step 5: Solve for x
x = 15,499,598,883,459,792/141,868,657.24 - Step 6: Final answer
x = 109,253,158.41
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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.