Home / 21,561,615.20-32,342,422.80-20,002,721.60

Finding the Fourth Proportional to 21,561,615.20, 32,342,422.80 and 20,002,721.60

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Solution

The fourth proportional to 21,561,615.20, 32,342,422.80 and 20,002,721.60 is: 30,004,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,615.20 : 32,342,422.80 = 20,002,721.60 : x
  2. Step 2: Convert to fraction form
    21,561,615.20/32,342,422.80 = 20,002,721.60/x
  3. Step 3: Cross multiply
    21,561,615.20x = 32,342,422.80 × 20,002,721.60
  4. Step 4: Simplify right side
    21,561,615.20x = 646,936,479,137,892.50
  5. Step 5: Solve for x
    x = 646,936,479,137,892.50/21,561,615.20
  6. Step 6: Final answer
    x = 30,004,082.40

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1.5x scale

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.