Home / 13,376,498.70-20,064,748.05-7,991,229.90

Finding the Fourth Proportional to 13,376,498.70, 20,064,748.05 and 7,991,229.90

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Solution

The fourth proportional to 13,376,498.70, 20,064,748.05 and 7,991,229.90 is: 11,986,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,498.70 : 20,064,748.05 = 7,991,229.90 : x
  2. Step 2: Convert to fraction form
    13,376,498.70/20,064,748.05 = 7,991,229.90/x
  3. Step 3: Cross multiply
    13,376,498.70x = 20,064,748.05 × 7,991,229.90
  4. Step 4: Simplify right side
    13,376,498.70x = 160,342,014,553,126.72
  5. Step 5: Solve for x
    x = 160,342,014,553,126.72/13,376,498.70
  6. Step 6: Final answer
    x = 11,986,844.85

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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.