Finding the Fourth Proportional to 100,253,880.70, 138,358,637.73 and 55,614,245.14
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Solution
The fourth proportional to 100,253,880.70, 138,358,637.73 and 55,614,245.14 is: 76,752,252.80
Step by Step Solution
- Step 1: Write the proportion equation
100,253,880.70 : 138,358,637.73 = 55,614,245.14 : x - Step 2: Convert to fraction form
100,253,880.70/138,358,637.73 = 55,614,245.14/x - Step 3: Cross multiply
100,253,880.70x = 138,358,637.73 × 55,614,245.14 - Step 4: Simplify right side
100,253,880.70x = 7,694,711,196,009,451 - Step 5: Solve for x
x = 7,694,711,196,009,451/100,253,880.70 - Step 6: Final answer
x = 76,752,252.80
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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.