Home / 20,101,750.12-30,155,988.36-15,783,626.17

Finding the Fourth Proportional to 20,101,750.12, 30,155,988.36 and 15,783,626.17

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Solution

The fourth proportional to 20,101,750.12, 30,155,988.36 and 15,783,626.17 is: 23,678,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,750.12 : 30,155,988.36 = 15,783,626.17 : x
  2. Step 2: Convert to fraction form
    20,101,750.12/30,155,988.36 = 15,783,626.17/x
  3. Step 3: Cross multiply
    20,101,750.12x = 30,155,988.36 × 15,783,626.17
  4. Step 4: Simplify right side
    20,101,750.12x = 475,970,846,910,331.38
  5. Step 5: Solve for x
    x = 475,970,846,910,331.38/20,101,750.12
  6. Step 6: Final answer
    x = 23,678,079.98

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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.