Home / 40,542,158.45-55,948,160.99-21,957,299.45

Finding the Fourth Proportional to 40,542,158.45, 55,948,160.99 and 21,957,299.45

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Solution

The fourth proportional to 40,542,158.45, 55,948,160.99 and 21,957,299.45 is: 30,301,063.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,542,158.45 : 55,948,160.99 = 21,957,299.45 : x
  2. Step 2: Convert to fraction form
    40,542,158.45/55,948,160.99 = 21,957,299.45/x
  3. Step 3: Cross multiply
    40,542,158.45x = 55,948,160.99 × 21,957,299.45
  4. Step 4: Simplify right side
    40,542,158.45x = 1,228,470,524,238,304.50
  5. Step 5: Solve for x
    x = 1,228,470,524,238,304.50/40,542,158.45
  6. Step 6: Final answer
    x = 30,301,063.66

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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.