Home / 87,428,732.45-131,134,111.70-29,130,113.75

Finding the Fourth Proportional to 87,428,732.45, 131,134,111.70 and 29,130,113.75

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Solution

The fourth proportional to 87,428,732.45, 131,134,111.70 and 29,130,113.75 is: 43,692,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,428,732.45 : 131,134,111.70 = 29,130,113.75 : x
  2. Step 2: Convert to fraction form
    87,428,732.45/131,134,111.70 = 29,130,113.75/x
  3. Step 3: Cross multiply
    87,428,732.45x = 131,134,111.70 × 29,130,113.75
  4. Step 4: Simplify right side
    87,428,732.45x = 3,819,951,590,180,555
  5. Step 5: Solve for x
    x = 3,819,951,590,180,555/87,428,732.45
  6. Step 6: Final answer
    x = 43,692,176.28

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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.