Home / 20,641,327.20-30,961,990.80-13,838,882.40

Finding the Fourth Proportional to 20,641,327.20, 30,961,990.80 and 13,838,882.40

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Solution

The fourth proportional to 20,641,327.20, 30,961,990.80 and 13,838,882.40 is: 20,758,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,327.20 : 30,961,990.80 = 13,838,882.40 : x
  2. Step 2: Convert to fraction form
    20,641,327.20/30,961,990.80 = 13,838,882.40/x
  3. Step 3: Cross multiply
    20,641,327.20x = 30,961,990.80 × 13,838,882.40
  4. Step 4: Simplify right side
    20,641,327.20x = 428,479,349,551,081.94
  5. Step 5: Solve for x
    x = 428,479,349,551,081.94/20,641,327.20
  6. Step 6: Final answer
    x = 20,758,323.60

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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.