Home / 12,347,312.40-18,522,936.90-5,155,144.20

Finding the Fourth Proportional to 12,347,312.40, 18,522,936.90 and 5,155,144.20

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Solution

The fourth proportional to 12,347,312.40, 18,522,936.90 and 5,155,144.20 is: 7,733,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,312.40 : 18,522,936.90 = 5,155,144.20 : x
  2. Step 2: Convert to fraction form
    12,347,312.40/18,522,936.90 = 5,155,144.20/x
  3. Step 3: Cross multiply
    12,347,312.40x = 18,522,936.90 × 5,155,144.20
  4. Step 4: Simplify right side
    12,347,312.40x = 95,488,410,727,000.97
  5. Step 5: Solve for x
    x = 95,488,410,727,000.97/12,347,312.40
  6. Step 6: Final answer
    x = 7,733,538.09

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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.