Finding the Fourth Proportional to 61,709,438.39, 85,167,700.43 and 38,195,517.24
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Solution
The fourth proportional to 61,709,438.39, 85,167,700.43 and 38,195,517.24 is: 52,715,183.53
Step by Step Solution
- Step 1: Write the proportion equation
61,709,438.39 : 85,167,700.43 = 38,195,517.24 : x - Step 2: Convert to fraction form
61,709,438.39/85,167,700.43 = 38,195,517.24/x - Step 3: Cross multiply
61,709,438.39x = 85,167,700.43 × 38,195,517.24 - Step 4: Simplify right side
61,709,438.39x = 3,253,024,369,874,243 - Step 5: Solve for x
x = 3,253,024,369,874,243/61,709,438.39 - Step 6: Final answer
x = 52,715,183.53
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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.