Home / 7,437,859.80-11,156,789.70-5,170,378.20

Finding the Fourth Proportional to 7,437,859.80, 11,156,789.70 and 5,170,378.20

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Solution

The fourth proportional to 7,437,859.80, 11,156,789.70 and 5,170,378.20 is: 7,755,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,437,859.80 : 11,156,789.70 = 5,170,378.20 : x
  2. Step 2: Convert to fraction form
    7,437,859.80/11,156,789.70 = 5,170,378.20/x
  3. Step 3: Cross multiply
    7,437,859.80x = 11,156,789.70 × 5,170,378.20
  4. Step 4: Simplify right side
    7,437,859.80x = 57,684,822,246,864.54
  5. Step 5: Solve for x
    x = 57,684,822,246,864.54/7,437,859.80
  6. Step 6: Final answer
    x = 7,755,567.30

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Double scale
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Similar ratio
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1.5x scale

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.