Home / 8,074,765.81-12,117,190.83-5,380,981.12

Finding the Fourth Proportional to 8,074,765.81, 12,117,190.83 and 5,380,981.12

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Solution

The fourth proportional to 8,074,765.81, 12,117,190.83 and 5,380,981.12 is: 8,074,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074,765.81 : 12,117,190.83 = 5,380,981.12 : x
  2. Step 2: Convert to fraction form
    8,074,765.81/12,117,190.83 = 5,380,981.12/x
  3. Step 3: Cross multiply
    8,074,765.81x = 12,117,190.83 × 5,380,981.12
  4. Step 4: Simplify right side
    8,074,765.81x = 65,202,375,083,667.13
  5. Step 5: Solve for x
    x = 65,202,375,083,667.13/8,074,765.81
  6. Step 6: Final answer
    x = 8,074,831.72

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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.