Home / 20,101,751.12-30,155,989.86-15,783,627.17

Finding the Fourth Proportional to 20,101,751.12, 30,155,989.86 and 15,783,627.17

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Solution

The fourth proportional to 20,101,751.12, 30,155,989.86 and 15,783,627.17 is: 23,678,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,751.12 : 30,155,989.86 = 15,783,627.17 : x
  2. Step 2: Convert to fraction form
    20,101,751.12/30,155,989.86 = 15,783,627.17/x
  3. Step 3: Cross multiply
    20,101,751.12x = 30,155,989.86 × 15,783,627.17
  4. Step 4: Simplify right side
    20,101,751.12x = 475,970,900,892,540.50
  5. Step 5: Solve for x
    x = 475,970,900,892,540.50/20,101,751.12
  6. Step 6: Final answer
    x = 23,678,081.48

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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.