Home / 82,048,917.60-123,018,706-45,178,169.76

Finding the Fourth Proportional to 82,048,917.60, 123,018,706 and 45,178,169.76

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Solution

The fourth proportional to 82,048,917.60, 123,018,706 and 45,178,169.76 is: 67,737,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,048,917.60 : 123,018,706 = 45,178,169.76 : x
  2. Step 2: Convert to fraction form
    82,048,917.60/123,018,706 = 45,178,169.76/x
  3. Step 3: Cross multiply
    82,048,917.60x = 123,018,706 × 45,178,169.76
  4. Step 4: Simplify right side
    82,048,917.60x = 5,557,759,983,323,530
  5. Step 5: Solve for x
    x = 5,557,759,983,323,530/82,048,917.60
  6. Step 6: Final answer
    x = 67,737,151.76

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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.