Home / 3,138,463.80-4,707,695.70-2,221,728.10

Finding the Fourth Proportional to 3,138,463.80, 4,707,695.70 and 2,221,728.10

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Solution

The fourth proportional to 3,138,463.80, 4,707,695.70 and 2,221,728.10 is: 3,332,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,463.80 : 4,707,695.70 = 2,221,728.10 : x
  2. Step 2: Convert to fraction form
    3,138,463.80/4,707,695.70 = 2,221,728.10/x
  3. Step 3: Cross multiply
    3,138,463.80x = 4,707,695.70 × 2,221,728.10
  4. Step 4: Simplify right side
    3,138,463.80x = 10,459,219,822,939.17
  5. Step 5: Solve for x
    x = 10,459,219,822,939.17/3,138,463.80
  6. Step 6: Final answer
    x = 3,332,592.15

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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.