Home / 12,301,129.40-18,451,694.10-5,909,840.60

Finding the Fourth Proportional to 12,301,129.40, 18,451,694.10 and 5,909,840.60

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Solution

The fourth proportional to 12,301,129.40, 18,451,694.10 and 5,909,840.60 is: 8,864,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301,129.40 : 18,451,694.10 = 5,909,840.60 : x
  2. Step 2: Convert to fraction form
    12,301,129.40/18,451,694.10 = 5,909,840.60/x
  3. Step 3: Cross multiply
    12,301,129.40x = 18,451,694.10 × 5,909,840.60
  4. Step 4: Simplify right side
    12,301,129.40x = 109,046,570,930,960.47
  5. Step 5: Solve for x
    x = 109,046,570,930,960.47/12,301,129.40
  6. Step 6: Final answer
    x = 8,864,760.90

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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.