Home / 18,765,793.20-28,151,314.20-7,983,008.40

Finding the Fourth Proportional to 18,765,793.20, 28,151,314.20 and 7,983,008.40

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Solution

The fourth proportional to 18,765,793.20, 28,151,314.20 and 7,983,008.40 is: 11,975,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765,793.20 : 28,151,314.20 = 7,983,008.40 : x
  2. Step 2: Convert to fraction form
    18,765,793.20/28,151,314.20 = 7,983,008.40/x
  3. Step 3: Cross multiply
    18,765,793.20x = 28,151,314.20 × 7,983,008.40
  4. Step 4: Simplify right side
    18,765,793.20x = 224,732,177,729,639.28
  5. Step 5: Solve for x
    x = 224,732,177,729,639.28/18,765,793.20
  6. Step 6: Final answer
    x = 11,975,629.03

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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.