Home / 18,722,460.30-28,083,690.45-7,937,925.90

Finding the Fourth Proportional to 18,722,460.30, 28,083,690.45 and 7,937,925.90

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Solution

The fourth proportional to 18,722,460.30, 28,083,690.45 and 7,937,925.90 is: 11,906,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,460.30 : 28,083,690.45 = 7,937,925.90 : x
  2. Step 2: Convert to fraction form
    18,722,460.30/28,083,690.45 = 7,937,925.90/x
  3. Step 3: Cross multiply
    18,722,460.30x = 28,083,690.45 × 7,937,925.90
  4. Step 4: Simplify right side
    18,722,460.30x = 222,926,253,790,637.66
  5. Step 5: Solve for x
    x = 222,926,253,790,637.66/18,722,460.30
  6. Step 6: Final answer
    x = 11,906,888.85

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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.