Home / 21,304,313.20-31,956,469.80-20,454,007.60

Finding the Fourth Proportional to 21,304,313.20, 31,956,469.80 and 20,454,007.60

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Solution

The fourth proportional to 21,304,313.20, 31,956,469.80 and 20,454,007.60 is: 30,681,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,313.20 : 31,956,469.80 = 20,454,007.60 : x
  2. Step 2: Convert to fraction form
    21,304,313.20/31,956,469.80 = 20,454,007.60/x
  3. Step 3: Cross multiply
    21,304,313.20x = 31,956,469.80 × 20,454,007.60
  4. Step 4: Simplify right side
    21,304,313.20x = 653,637,876,158,370.50
  5. Step 5: Solve for x
    x = 653,637,876,158,370.50/21,304,313.20
  6. Step 6: Final answer
    x = 30,681,011.40

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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.