Home / 13,478,868.59-18,598,760.12-7,676,910.68

Finding the Fourth Proportional to 13,478,868.59, 18,598,760.12 and 7,676,910.68

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Solution

The fourth proportional to 13,478,868.59, 18,598,760.12 and 7,676,910.68 is: 10,592,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,868.59 : 18,598,760.12 = 7,676,910.68 : x
  2. Step 2: Convert to fraction form
    13,478,868.59/18,598,760.12 = 7,676,910.68/x
  3. Step 3: Cross multiply
    13,478,868.59x = 18,598,760.12 × 7,676,910.68
  4. Step 4: Simplify right side
    13,478,868.59x = 142,781,020,126,184.53
  5. Step 5: Solve for x
    x = 142,781,020,126,184.53/13,478,868.59
  6. Step 6: Final answer
    x = 10,592,952.90

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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.