Home / 199,300,805.10-298,951,207.65-121,816,707.30

Finding the Fourth Proportional to 199,300,805.10, 298,951,207.65 and 121,816,707.30

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Solution

The fourth proportional to 199,300,805.10, 298,951,207.65 and 121,816,707.30 is: 182,725,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300,805.10 : 298,951,207.65 = 121,816,707.30 : x
  2. Step 2: Convert to fraction form
    199,300,805.10/298,951,207.65 = 121,816,707.30/x
  3. Step 3: Cross multiply
    199,300,805.10x = 298,951,207.65 × 121,816,707.30
  4. Step 4: Simplify right side
    199,300,805.10x = 36,417,251,759,281,568
  5. Step 5: Solve for x
    x = 36,417,251,759,281,568/199,300,805.10
  6. Step 6: Final answer
    x = 182,725,060.95

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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.