Home / 42,125,610.60-63,188,415.90-20,574,037.80

Finding the Fourth Proportional to 42,125,610.60, 63,188,415.90 and 20,574,037.80

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Solution

The fourth proportional to 42,125,610.60, 63,188,415.90 and 20,574,037.80 is: 30,861,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125,610.60 : 63,188,415.90 = 20,574,037.80 : x
  2. Step 2: Convert to fraction form
    42,125,610.60/63,188,415.90 = 20,574,037.80/x
  3. Step 3: Cross multiply
    42,125,610.60x = 63,188,415.90 × 20,574,037.80
  4. Step 4: Simplify right side
    42,125,610.60x = 1,300,040,857,248,721
  5. Step 5: Solve for x
    x = 1,300,040,857,248,721/42,125,610.60
  6. Step 6: Final answer
    x = 30,861,056.70

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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.