Home / 18,687,635.70-28,031,453.55-7,328,454.90

Finding the Fourth Proportional to 18,687,635.70, 28,031,453.55 and 7,328,454.90

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Solution

The fourth proportional to 18,687,635.70, 28,031,453.55 and 7,328,454.90 is: 10,992,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,635.70 : 28,031,453.55 = 7,328,454.90 : x
  2. Step 2: Convert to fraction form
    18,687,635.70/28,031,453.55 = 7,328,454.90/x
  3. Step 3: Cross multiply
    18,687,635.70x = 28,031,453.55 × 7,328,454.90
  4. Step 4: Simplify right side
    18,687,635.70x = 205,427,243,122,619.91
  5. Step 5: Solve for x
    x = 205,427,243,122,619.91/18,687,635.70
  6. Step 6: Final answer
    x = 10,992,682.35

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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.