Home / 28,129,757.76-42,201,000-8,961,606.72

Finding the Fourth Proportional to 28,129,757.76, 42,201,000 and 8,961,606.72

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Solution

The fourth proportional to 28,129,757.76, 42,201,000 and 8,961,606.72 is: 13,444,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129,757.76 : 42,201,000 = 8,961,606.72 : x
  2. Step 2: Convert to fraction form
    28,129,757.76/42,201,000 = 8,961,606.72/x
  3. Step 3: Cross multiply
    28,129,757.76x = 42,201,000 × 8,961,606.72
  4. Step 4: Simplify right side
    28,129,757.76x = 378,188,765,190,720
  5. Step 5: Solve for x
    x = 378,188,765,190,720/28,129,757.76
  6. Step 6: Final answer
    x = 13,444,437.33

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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.