Home / 65,942,741.36-90,895,872.12-51,981,343.76

Finding the Fourth Proportional to 65,942,741.36, 90,895,872.12 and 51,981,343.76

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Solution

The fourth proportional to 65,942,741.36, 90,895,872.12 and 51,981,343.76 is: 71,651,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,942,741.36 : 90,895,872.12 = 51,981,343.76 : x
  2. Step 2: Convert to fraction form
    65,942,741.36/90,895,872.12 = 51,981,343.76/x
  3. Step 3: Cross multiply
    65,942,741.36x = 90,895,872.12 × 51,981,343.76
  4. Step 4: Simplify right side
    65,942,741.36x = 4,724,889,575,034,720
  5. Step 5: Solve for x
    x = 4,724,889,575,034,720/65,942,741.36
  6. Step 6: Final answer
    x = 71,651,397.52

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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.