Home / 18,722,623.20-28,084,856.40-9,764,671.20

Finding the Fourth Proportional to 18,722,623.20, 28,084,856.40 and 9,764,671.20

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Solution

The fourth proportional to 18,722,623.20, 28,084,856.40 and 9,764,671.20 is: 14,647,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,623.20 : 28,084,856.40 = 9,764,671.20 : x
  2. Step 2: Convert to fraction form
    18,722,623.20/28,084,856.40 = 9,764,671.20/x
  3. Step 3: Cross multiply
    18,722,623.20x = 28,084,856.40 × 9,764,671.20
  4. Step 4: Simplify right side
    18,722,623.20x = 274,239,388,445,215.66
  5. Step 5: Solve for x
    x = 274,239,388,445,215.66/18,722,623.20
  6. Step 6: Final answer
    x = 14,647,487.45

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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.