Finding the Fourth Proportional to 76,307,713.20, 114,461,569.80 and 47,251,176.53
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Solution
The fourth proportional to 76,307,713.20, 114,461,569.80 and 47,251,176.53 is: 70,876,764.79
Step by Step Solution
- Step 1: Write the proportion equation
76,307,713.20 : 114,461,569.80 = 47,251,176.53 : x - Step 2: Convert to fraction form
76,307,713.20/114,461,569.80 = 47,251,176.53/x - Step 3: Cross multiply
76,307,713.20x = 114,461,569.80 × 47,251,176.53 - Step 4: Simplify right side
76,307,713.20x = 5,408,443,839,948,409 - Step 5: Solve for x
x = 5,408,443,839,948,409/76,307,713.20 - Step 6: Final answer
x = 70,876,764.79
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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.