Home / 13,226,331.13-18,251,329.20-7,423,991.83

Finding the Fourth Proportional to 13,226,331.13, 18,251,329.20 and 7,423,991.83

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Solution

The fourth proportional to 13,226,331.13, 18,251,329.20 and 7,423,991.83 is: 10,244,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226,331.13 : 18,251,329.20 = 7,423,991.83 : x
  2. Step 2: Convert to fraction form
    13,226,331.13/18,251,329.20 = 7,423,991.83/x
  3. Step 3: Cross multiply
    13,226,331.13x = 18,251,329.20 × 7,423,991.83
  4. Step 4: Simplify right side
    13,226,331.13x = 135,497,718,867,440.44
  5. Step 5: Solve for x
    x = 135,497,718,867,440.44/13,226,331.13
  6. Step 6: Final answer
    x = 10,244,543.07

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1.5x scale

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.