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Finding the Fourth Proportional to 82,767,178.80, 124,150,768.20 and 82,767,178.80

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Solution

The fourth proportional to 82,767,178.80, 124,150,768.20 and 82,767,178.80 is: 124,150,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,767,178.80 : 124,150,768.20 = 82,767,178.80 : x
  2. Step 2: Convert to fraction form
    82,767,178.80/124,150,768.20 = 82,767,178.80/x
  3. Step 3: Cross multiply
    82,767,178.80x = 124,150,768.20 × 82,767,178.80
  4. Step 4: Simplify right side
    82,767,178.80x = 10,275,608,829,766,754
  5. Step 5: Solve for x
    x = 10,275,608,829,766,754/82,767,178.80
  6. Step 6: Final answer
    x = 124,150,768.20

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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.