Home / 12,455,433.60-18,686,102.85-6,391,101.30

Finding the Fourth Proportional to 12,455,433.60, 18,686,102.85 and 6,391,101.30

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Solution

The fourth proportional to 12,455,433.60, 18,686,102.85 and 6,391,101.30 is: 9,588,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,433.60 : 18,686,102.85 = 6,391,101.30 : x
  2. Step 2: Convert to fraction form
    12,455,433.60/18,686,102.85 = 6,391,101.30/x
  3. Step 3: Cross multiply
    12,455,433.60x = 18,686,102.85 × 6,391,101.30
  4. Step 4: Simplify right side
    12,455,433.60x = 119,424,776,216,568.72
  5. Step 5: Solve for x
    x = 119,424,776,216,568.72/12,455,433.60
  6. Step 6: Final answer
    x = 9,588,166.90

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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.