Home / 20,806,484.20-31,209,726.30-10,189,652.20

Finding the Fourth Proportional to 20,806,484.20, 31,209,726.30 and 10,189,652.20

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Solution

The fourth proportional to 20,806,484.20, 31,209,726.30 and 10,189,652.20 is: 15,284,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,484.20 : 31,209,726.30 = 10,189,652.20 : x
  2. Step 2: Convert to fraction form
    20,806,484.20/31,209,726.30 = 10,189,652.20/x
  3. Step 3: Cross multiply
    20,806,484.20x = 31,209,726.30 × 10,189,652.20
  4. Step 4: Simplify right side
    20,806,484.20x = 318,016,256,254,192.88
  5. Step 5: Solve for x
    x = 318,016,256,254,192.88/20,806,484.20
  6. Step 6: Final answer
    x = 15,284,478.30

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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.