Home / 12,455,439.60-18,686,111.85-6,391,107.30

Finding the Fourth Proportional to 12,455,439.60, 18,686,111.85 and 6,391,107.30

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Solution

The fourth proportional to 12,455,439.60, 18,686,111.85 and 6,391,107.30 is: 9,588,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,439.60 : 18,686,111.85 = 6,391,107.30 : x
  2. Step 2: Convert to fraction form
    12,455,439.60/18,686,111.85 = 6,391,107.30/x
  3. Step 3: Cross multiply
    12,455,439.60x = 18,686,111.85 × 6,391,107.30
  4. Step 4: Simplify right side
    12,455,439.60x = 119,424,945,853,151.52
  5. Step 5: Solve for x
    x = 119,424,945,853,151.52/12,455,439.60
  6. Step 6: Final answer
    x = 9,588,175.90

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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.