Home / 12,117,138.60-18,144,215.10-9,576,719.40

Finding the Fourth Proportional to 12,117,138.60, 18,144,215.10 and 9,576,719.40

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Solution

The fourth proportional to 12,117,138.60, 18,144,215.10 and 9,576,719.40 is: 14,340,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,138.60 : 18,144,215.10 = 9,576,719.40 : x
  2. Step 2: Convert to fraction form
    12,117,138.60/18,144,215.10 = 9,576,719.40/x
  3. Step 3: Cross multiply
    12,117,138.60x = 18,144,215.10 × 9,576,719.40
  4. Step 4: Simplify right side
    12,117,138.60x = 173,762,056,745,942.97
  5. Step 5: Solve for x
    x = 173,762,056,745,942.97/12,117,138.60
  6. Step 6: Final answer
    x = 14,340,188.92

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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.