Home / 61,271,251.20-91,780,905.60-42,123,628.80

Finding the Fourth Proportional to 61,271,251.20, 91,780,905.60 and 42,123,628.80

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Solution

The fourth proportional to 61,271,251.20, 91,780,905.60 and 42,123,628.80 is: 63,098,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,271,251.20 : 91,780,905.60 = 42,123,628.80 : x
  2. Step 2: Convert to fraction form
    61,271,251.20/91,780,905.60 = 42,123,628.80/x
  3. Step 3: Cross multiply
    61,271,251.20x = 91,780,905.60 × 42,123,628.80
  4. Step 4: Simplify right side
    61,271,251.20x = 3,866,144,798,422,241
  5. Step 5: Solve for x
    x = 3,866,144,798,422,241/61,271,251.20
  6. Step 6: Final answer
    x = 63,098,838.73

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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.