Home / 20,231,505.40-30,347,258.10-19,895,582.20

Finding the Fourth Proportional to 20,231,505.40, 30,347,258.10 and 19,895,582.20

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Solution

The fourth proportional to 20,231,505.40, 30,347,258.10 and 19,895,582.20 is: 29,843,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,505.40 : 30,347,258.10 = 19,895,582.20 : x
  2. Step 2: Convert to fraction form
    20,231,505.40/30,347,258.10 = 19,895,582.20/x
  3. Step 3: Cross multiply
    20,231,505.40x = 30,347,258.10 × 19,895,582.20
  4. Step 4: Simplify right side
    20,231,505.40x = 603,776,368,073,165.88
  5. Step 5: Solve for x
    x = 603,776,368,073,165.88/20,231,505.40
  6. Step 6: Final answer
    x = 29,843,373.30

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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.