Home / 77,007,731.20-115,542,700.80-33,885,145.60

Finding the Fourth Proportional to 77,007,731.20, 115,542,700.80 and 33,885,145.60

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Solution

The fourth proportional to 77,007,731.20, 115,542,700.80 and 33,885,145.60 is: 50,841,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007,731.20 : 115,542,700.80 = 33,885,145.60 : x
  2. Step 2: Convert to fraction form
    77,007,731.20/115,542,700.80 = 33,885,145.60/x
  3. Step 3: Cross multiply
    77,007,731.20x = 115,542,700.80 × 33,885,145.60
  4. Step 4: Simplify right side
    77,007,731.20x = 3,915,181,239,625,236.50
  5. Step 5: Solve for x
    x = 3,915,181,239,625,236.50/77,007,731.20
  6. Step 6: Final answer
    x = 50,841,404.86

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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.