Finding the Fourth Proportional to 154,202,793.41, 212,797,869.62 and 88,122,534.95
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Solution
The fourth proportional to 154,202,793.41, 212,797,869.62 and 88,122,534.95 is: 121,607,963.69
Step by Step Solution
- Step 1: Write the proportion equation
154,202,793.41 : 212,797,869.62 = 88,122,534.95 : x - Step 2: Convert to fraction form
154,202,793.41/212,797,869.62 = 88,122,534.95/x - Step 3: Cross multiply
154,202,793.41x = 212,797,869.62 × 88,122,534.95 - Step 4: Simplify right side
154,202,793.41x = 18,752,287,701,369,392 - Step 5: Solve for x
x = 18,752,287,701,369,392/154,202,793.41 - Step 6: Final answer
x = 121,607,963.69
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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.