Home / 82,945,129.10-124,417,693.65-73,091,381.90

Finding the Fourth Proportional to 82,945,129.10, 124,417,693.65 and 73,091,381.90

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Solution

The fourth proportional to 82,945,129.10, 124,417,693.65 and 73,091,381.90 is: 109,637,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,945,129.10 : 124,417,693.65 = 73,091,381.90 : x
  2. Step 2: Convert to fraction form
    82,945,129.10/124,417,693.65 = 73,091,381.90/x
  3. Step 3: Cross multiply
    82,945,129.10x = 124,417,693.65 × 73,091,381.90
  4. Step 4: Simplify right side
    82,945,129.10x = 9,093,861,161,689,356
  5. Step 5: Solve for x
    x = 9,093,861,161,689,356/82,945,129.10
  6. Step 6: Final answer
    x = 109,637,072.85

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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.