Home / 13,456,439.20-18,569,885.60-7,344,867.70

Finding the Fourth Proportional to 13,456,439.20, 18,569,885.60 and 7,344,867.70

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Solution

The fourth proportional to 13,456,439.20, 18,569,885.60 and 7,344,867.70 is: 10,135,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456,439.20 : 18,569,885.60 = 7,344,867.70 : x
  2. Step 2: Convert to fraction form
    13,456,439.20/18,569,885.60 = 7,344,867.70/x
  3. Step 3: Cross multiply
    13,456,439.20x = 18,569,885.60 × 7,344,867.70
  4. Step 4: Simplify right side
    13,456,439.20x = 136,393,352,936,135.14
  5. Step 5: Solve for x
    x = 136,393,352,936,135.14/13,456,439.20
  6. Step 6: Final answer
    x = 10,135,917.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.