Home / 12,347,247.90-18,522,840.15-5,155,079.70

Finding the Fourth Proportional to 12,347,247.90, 18,522,840.15 and 5,155,079.70

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Solution

The fourth proportional to 12,347,247.90, 18,522,840.15 and 5,155,079.70 is: 7,733,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,247.90 : 18,522,840.15 = 5,155,079.70 : x
  2. Step 2: Convert to fraction form
    12,347,247.90/18,522,840.15 = 5,155,079.70/x
  3. Step 3: Cross multiply
    12,347,247.90x = 18,522,840.15 × 5,155,079.70
  4. Step 4: Simplify right side
    12,347,247.90x = 95,486,717,243,609.95
  5. Step 5: Solve for x
    x = 95,486,717,243,609.95/12,347,247.90
  6. Step 6: Final answer
    x = 7,733,441.33

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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.