Home / 82,136,529.28-123,325,908.32-45,815,883.04

Finding the Fourth Proportional to 82,136,529.28, 123,325,908.32 and 45,815,883.04

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Solution

The fourth proportional to 82,136,529.28, 123,325,908.32 and 45,815,883.04 is: 68,791,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136,529.28 : 123,325,908.32 = 45,815,883.04 : x
  2. Step 2: Convert to fraction form
    82,136,529.28/123,325,908.32 = 45,815,883.04/x
  3. Step 3: Cross multiply
    82,136,529.28x = 123,325,908.32 × 45,815,883.04
  4. Step 4: Simplify right side
    82,136,529.28x = 5,650,285,391,390,882
  5. Step 5: Solve for x
    x = 5,650,285,391,390,882/82,136,529.28
  6. Step 6: Final answer
    x = 68,791,382.36

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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.