Finding the Fourth Proportional to 69,331,438.99, 95,676,209.42 and 38,390,943.97
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Solution
The fourth proportional to 69,331,438.99, 95,676,209.42 and 38,390,943.97 is: 52,978,851.28
Step by Step Solution
- Step 1: Write the proportion equation
69,331,438.99 : 95,676,209.42 = 38,390,943.97 : x - Step 2: Convert to fraction form
69,331,438.99/95,676,209.42 = 38,390,943.97/x - Step 3: Cross multiply
69,331,438.99x = 95,676,209.42 × 38,390,943.97 - Step 4: Simplify right side
69,331,438.99x = 3,673,099,995,248,603.50 - Step 5: Solve for x
x = 3,673,099,995,248,603.50/69,331,438.99 - Step 6: Final answer
x = 52,978,851.28
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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.