Finding the Fourth Proportional to 103,711,492.88, 143,124,747.36 and 57,304,737.44
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Solution
The fourth proportional to 103,711,492.88, 143,124,747.36 and 57,304,737.44 is: 79,082,132.95
Step by Step Solution
- Step 1: Write the proportion equation
103,711,492.88 : 143,124,747.36 = 57,304,737.44 : x - Step 2: Convert to fraction form
103,711,492.88/143,124,747.36 = 57,304,737.44/x - Step 3: Cross multiply
103,711,492.88x = 143,124,747.36 × 57,304,737.44 - Step 4: Simplify right side
103,711,492.88x = 8,201,726,068,631,134 - Step 5: Solve for x
x = 8,201,726,068,631,134/103,711,492.88 - Step 6: Final answer
x = 79,082,132.95
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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.