Home / 20,780,793.60-31,171,190.40-20,497,358.40

Finding the Fourth Proportional to 20,780,793.60, 31,171,190.40 and 20,497,358.40

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Solution

The fourth proportional to 20,780,793.60, 31,171,190.40 and 20,497,358.40 is: 30,746,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,780,793.60 : 31,171,190.40 = 20,497,358.40 : x
  2. Step 2: Convert to fraction form
    20,780,793.60/31,171,190.40 = 20,497,358.40/x
  3. Step 3: Cross multiply
    20,780,793.60x = 31,171,190.40 × 20,497,358.40
  4. Step 4: Simplify right side
    20,780,793.60x = 638,927,061,383,439.25
  5. Step 5: Solve for x
    x = 638,927,061,383,439.25/20,780,793.60
  6. Step 6: Final answer
    x = 30,746,037.60

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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.