Home / 198,288,003.70-297,432,005.55-143,868,445.30

Finding the Fourth Proportional to 198,288,003.70, 297,432,005.55 and 143,868,445.30

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Solution

The fourth proportional to 198,288,003.70, 297,432,005.55 and 143,868,445.30 is: 215,802,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,288,003.70 : 297,432,005.55 = 143,868,445.30 : x
  2. Step 2: Convert to fraction form
    198,288,003.70/297,432,005.55 = 143,868,445.30/x
  3. Step 3: Cross multiply
    198,288,003.70x = 297,432,005.55 × 143,868,445.30
  4. Step 4: Simplify right side
    198,288,003.70x = 42,791,080,220,939,480
  5. Step 5: Solve for x
    x = 42,791,080,220,939,480/198,288,003.70
  6. Step 6: Final answer
    x = 215,802,667.95

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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.