Home / 21,381,648.20-32,072,472.30-20,121,936.20

Finding the Fourth Proportional to 21,381,648.20, 32,072,472.30 and 20,121,936.20

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Solution

The fourth proportional to 21,381,648.20, 32,072,472.30 and 20,121,936.20 is: 30,182,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381,648.20 : 32,072,472.30 = 20,121,936.20 : x
  2. Step 2: Convert to fraction form
    21,381,648.20/32,072,472.30 = 20,121,936.20/x
  3. Step 3: Cross multiply
    21,381,648.20x = 32,072,472.30 × 20,121,936.20
  4. Step 4: Simplify right side
    21,381,648.20x = 645,360,241,396,867.25
  5. Step 5: Solve for x
    x = 645,360,241,396,867.25/21,381,648.20
  6. Step 6: Final answer
    x = 30,182,904.30

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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.