Home / 12,949,331.20-19,423,996.80-4,428,908.80

Finding the Fourth Proportional to 12,949,331.20, 19,423,996.80 and 4,428,908.80

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Solution

The fourth proportional to 12,949,331.20, 19,423,996.80 and 4,428,908.80 is: 6,643,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,331.20 : 19,423,996.80 = 4,428,908.80 : x
  2. Step 2: Convert to fraction form
    12,949,331.20/19,423,996.80 = 4,428,908.80/x
  3. Step 3: Cross multiply
    12,949,331.20x = 19,423,996.80 × 4,428,908.80
  4. Step 4: Simplify right side
    12,949,331.20x = 86,027,110,358,691.84
  5. Step 5: Solve for x
    x = 86,027,110,358,691.84/12,949,331.20
  6. Step 6: Final answer
    x = 6,643,363.20

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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.