Home / 28,231,251.30-42,252,398.55-19,728,195.30

Finding the Fourth Proportional to 28,231,251.30, 42,252,398.55 and 19,728,195.30

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Solution

The fourth proportional to 28,231,251.30, 42,252,398.55 and 19,728,195.30 is: 29,526,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231,251.30 : 42,252,398.55 = 19,728,195.30 : x
  2. Step 2: Convert to fraction form
    28,231,251.30/42,252,398.55 = 19,728,195.30/x
  3. Step 3: Cross multiply
    28,231,251.30x = 42,252,398.55 × 19,728,195.30
  4. Step 4: Simplify right side
    28,231,251.30x = 833,563,570,487,836.75
  5. Step 5: Solve for x
    x = 833,563,570,487,836.75/28,231,251.30
  6. Step 6: Final answer
    x = 29,526,270.79

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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.