Home / 279,936,015.10-419,904,022.65-156,988,123.90

Finding the Fourth Proportional to 279,936,015.10, 419,904,022.65 and 156,988,123.90

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Solution

The fourth proportional to 279,936,015.10, 419,904,022.65 and 156,988,123.90 is: 235,482,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,015.10 : 419,904,022.65 = 156,988,123.90 : x
  2. Step 2: Convert to fraction form
    279,936,015.10/419,904,022.65 = 156,988,123.90/x
  3. Step 3: Cross multiply
    279,936,015.10x = 419,904,022.65 × 156,988,123.90
  4. Step 4: Simplify right side
    279,936,015.10x = 65,919,944,733,886,608
  5. Step 5: Solve for x
    x = 65,919,944,733,886,608/279,936,015.10
  6. Step 6: Final answer
    x = 235,482,185.85

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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.