Home / 199,300,806.60-298,951,209.90-121,816,708.80

Finding the Fourth Proportional to 199,300,806.60, 298,951,209.90 and 121,816,708.80

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Solution

The fourth proportional to 199,300,806.60, 298,951,209.90 and 121,816,708.80 is: 182,725,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300,806.60 : 298,951,209.90 = 121,816,708.80 : x
  2. Step 2: Convert to fraction form
    199,300,806.60/298,951,209.90 = 121,816,708.80/x
  3. Step 3: Cross multiply
    199,300,806.60x = 298,951,209.90 × 121,816,708.80
  4. Step 4: Simplify right side
    199,300,806.60x = 36,417,252,481,795,976
  5. Step 5: Solve for x
    x = 36,417,252,481,795,976/199,300,806.60
  6. Step 6: Final answer
    x = 182,725,063.20

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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.