Home / 136,883,212.80-205,324,819.20-127,813,286.40

Finding the Fourth Proportional to 136,883,212.80, 205,324,819.20 and 127,813,286.40

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Solution

The fourth proportional to 136,883,212.80, 205,324,819.20 and 127,813,286.40 is: 191,719,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,883,212.80 : 205,324,819.20 = 127,813,286.40 : x
  2. Step 2: Convert to fraction form
    136,883,212.80/205,324,819.20 = 127,813,286.40/x
  3. Step 3: Cross multiply
    136,883,212.80x = 205,324,819.20 × 127,813,286.40
  4. Step 4: Simplify right side
    136,883,212.80x = 26,243,239,921,437,820
  5. Step 5: Solve for x
    x = 26,243,239,921,437,820/136,883,212.80
  6. Step 6: Final answer
    x = 191,719,929.60

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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.