Home / 20,708,205.20-31,062,016.20-9,348,635.60

Finding the Fourth Proportional to 20,708,205.20, 31,062,016.20 and 9,348,635.60

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Solution

The fourth proportional to 20,708,205.20, 31,062,016.20 and 9,348,635.60 is: 14,022,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708,205.20 : 31,062,016.20 = 9,348,635.60 : x
  2. Step 2: Convert to fraction form
    20,708,205.20/31,062,016.20 = 9,348,635.60/x
  3. Step 3: Cross multiply
    20,708,205.20x = 31,062,016.20 × 9,348,635.60
  4. Step 4: Simplify right side
    20,708,205.20x = 290,387,470,455,096.69
  5. Step 5: Solve for x
    x = 290,387,470,455,096.69/20,708,205.20
  6. Step 6: Final answer
    x = 14,022,821.76

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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.