Home / 20,412,979.20-30,619,468.80-14,035,687.20

Finding the Fourth Proportional to 20,412,979.20, 30,619,468.80 and 14,035,687.20

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Solution

The fourth proportional to 20,412,979.20, 30,619,468.80 and 14,035,687.20 is: 21,053,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,979.20 : 30,619,468.80 = 14,035,687.20 : x
  2. Step 2: Convert to fraction form
    20,412,979.20/30,619,468.80 = 14,035,687.20/x
  3. Step 3: Cross multiply
    20,412,979.20x = 30,619,468.80 × 14,035,687.20
  4. Step 4: Simplify right side
    20,412,979.20x = 429,765,286,306,959.38
  5. Step 5: Solve for x
    x = 429,765,286,306,959.38/20,412,979.20
  6. Step 6: Final answer
    x = 21,053,530.80

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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.