Home / 67,194,128.30-100,809,854.85-28,874,000.30

Finding the Fourth Proportional to 67,194,128.30, 100,809,854.85 and 28,874,000.30

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Solution

The fourth proportional to 67,194,128.30, 100,809,854.85 and 28,874,000.30 is: 43,319,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,194,128.30 : 100,809,854.85 = 28,874,000.30 : x
  2. Step 2: Convert to fraction form
    67,194,128.30/100,809,854.85 = 28,874,000.30/x
  3. Step 3: Cross multiply
    67,194,128.30x = 100,809,854.85 × 28,874,000.30
  4. Step 4: Simplify right side
    67,194,128.30x = 2,910,783,779,181,856.50
  5. Step 5: Solve for x
    x = 2,910,783,779,181,856.50/67,194,128.30
  6. Step 6: Final answer
    x = 43,319,019.87

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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.