Home / 20,130,860.80-30,171,109.92-15,854,138.56

Finding the Fourth Proportional to 20,130,860.80, 30,171,109.92 and 15,854,138.56

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Solution

The fourth proportional to 20,130,860.80, 30,171,109.92 and 15,854,138.56 is: 23,761,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,860.80 : 30,171,109.92 = 15,854,138.56 : x
  2. Step 2: Convert to fraction form
    20,130,860.80/30,171,109.92 = 15,854,138.56/x
  3. Step 3: Cross multiply
    20,130,860.80x = 30,171,109.92 × 15,854,138.56
  4. Step 4: Simplify right side
    20,130,860.80x = 478,336,957,180,670.56
  5. Step 5: Solve for x
    x = 478,336,957,180,670.56/20,130,860.80
  6. Step 6: Final answer
    x = 23,761,376.22

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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.