Home / 199,300,806.10-298,951,209.15-121,816,708.30

Finding the Fourth Proportional to 199,300,806.10, 298,951,209.15 and 121,816,708.30

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Solution

The fourth proportional to 199,300,806.10, 298,951,209.15 and 121,816,708.30 is: 182,725,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300,806.10 : 298,951,209.15 = 121,816,708.30 : x
  2. Step 2: Convert to fraction form
    199,300,806.10/298,951,209.15 = 121,816,708.30/x
  3. Step 3: Cross multiply
    199,300,806.10x = 298,951,209.15 × 121,816,708.30
  4. Step 4: Simplify right side
    199,300,806.10x = 36,417,252,240,957,840
  5. Step 5: Solve for x
    x = 36,417,252,240,957,840/199,300,806.10
  6. Step 6: Final answer
    x = 182,725,062.45

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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.