Home / 42,178,340.64-58,180,658.82-27,856,851.64

Finding the Fourth Proportional to 42,178,340.64, 58,180,658.82 and 27,856,851.64

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Solution

The fourth proportional to 42,178,340.64, 58,180,658.82 and 27,856,851.64 is: 38,425,645.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,178,340.64 : 58,180,658.82 = 27,856,851.64 : x
  2. Step 2: Convert to fraction form
    42,178,340.64/58,180,658.82 = 27,856,851.64/x
  3. Step 3: Cross multiply
    42,178,340.64x = 58,180,658.82 × 27,856,851.64
  4. Step 4: Simplify right side
    42,178,340.64x = 1,620,729,980,816,282.50
  5. Step 5: Solve for x
    x = 1,620,729,980,816,282.50/42,178,340.64
  6. Step 6: Final answer
    x = 38,425,645.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.