Finding the Fourth Proportional to 118,320,565.20, 177,480,847.80 and 54,619,573.20
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Solution
The fourth proportional to 118,320,565.20, 177,480,847.80 and 54,619,573.20 is: 81,929,359.80
Step by Step Solution
- Step 1: Write the proportion equation
118,320,565.20 : 177,480,847.80 = 54,619,573.20 : x - Step 2: Convert to fraction form
118,320,565.20/177,480,847.80 = 54,619,573.20/x - Step 3: Cross multiply
118,320,565.20x = 177,480,847.80 × 54,619,573.20 - Step 4: Simplify right side
118,320,565.20x = 9,693,928,158,010,160 - Step 5: Solve for x
x = 9,693,928,158,010,160/118,320,565.20 - Step 6: Final answer
x = 81,929,359.80
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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.