Home / 10,791,878.40-16,187,817.60-5,417,107.20

Finding the Fourth Proportional to 10,791,878.40, 16,187,817.60 and 5,417,107.20

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Solution

The fourth proportional to 10,791,878.40, 16,187,817.60 and 5,417,107.20 is: 8,125,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791,878.40 : 16,187,817.60 = 5,417,107.20 : x
  2. Step 2: Convert to fraction form
    10,791,878.40/16,187,817.60 = 5,417,107.20/x
  3. Step 3: Cross multiply
    10,791,878.40x = 16,187,817.60 × 5,417,107.20
  4. Step 4: Simplify right side
    10,791,878.40x = 87,691,143,273,246.72
  5. Step 5: Solve for x
    x = 87,691,143,273,246.72/10,791,878.40
  6. Step 6: Final answer
    x = 8,125,660.80

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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.