Home / 199,612,986.20-298,971,581.70-163,781,178.20

Finding the Fourth Proportional to 199,612,986.20, 298,971,581.70 and 163,781,178.20

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Solution

The fourth proportional to 199,612,986.20, 298,971,581.70 and 163,781,178.20 is: 245,304,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,612,986.20 : 298,971,581.70 = 163,781,178.20 : x
  2. Step 2: Convert to fraction form
    199,612,986.20/298,971,581.70 = 163,781,178.20/x
  3. Step 3: Cross multiply
    199,612,986.20x = 298,971,581.70 × 163,781,178.20
  4. Step 4: Simplify right side
    199,612,986.20x = 48,965,917,899,143,552
  5. Step 5: Solve for x
    x = 48,965,917,899,143,552/199,612,986.20
  6. Step 6: Final answer
    x = 245,304,270.18

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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.