Home / 139,325,607.12-192,257,966.18-82,030,256.78

Finding the Fourth Proportional to 139,325,607.12, 192,257,966.18 and 82,030,256.78

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Solution

The fourth proportional to 139,325,607.12, 192,257,966.18 and 82,030,256.78 is: 113,195,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,325,607.12 : 192,257,966.18 = 82,030,256.78 : x
  2. Step 2: Convert to fraction form
    139,325,607.12/192,257,966.18 = 82,030,256.78/x
  3. Step 3: Cross multiply
    139,325,607.12x = 192,257,966.18 × 82,030,256.78
  4. Step 4: Simplify right side
    139,325,607.12x = 15,770,970,332,374,516
  5. Step 5: Solve for x
    x = 15,770,970,332,374,516/139,325,607.12
  6. Step 6: Final answer
    x = 113,195,059.10

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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.