Home / 82,077,820.24-123,412,048.80-75,679,174.48

Finding the Fourth Proportional to 82,077,820.24, 123,412,048.80 and 75,679,174.48

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Solution

The fourth proportional to 82,077,820.24, 123,412,048.80 and 75,679,174.48 is: 113,791,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,077,820.24 : 123,412,048.80 = 75,679,174.48 : x
  2. Step 2: Convert to fraction form
    82,077,820.24/123,412,048.80 = 75,679,174.48/x
  3. Step 3: Cross multiply
    82,077,820.24x = 123,412,048.80 × 75,679,174.48
  4. Step 4: Simplify right side
    82,077,820.24x = 9,339,721,974,069,474
  5. Step 5: Solve for x
    x = 9,339,721,974,069,474/82,077,820.24
  6. Step 6: Final answer
    x = 113,791,057.64

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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.