Home / 13,603,989.12-18,772,115.76-8,376,167.04

Finding the Fourth Proportional to 13,603,989.12, 18,772,115.76 and 8,376,167.04

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Solution

The fourth proportional to 13,603,989.12, 18,772,115.76 and 8,376,167.04 is: 11,558,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,989.12 : 18,772,115.76 = 8,376,167.04 : x
  2. Step 2: Convert to fraction form
    13,603,989.12/18,772,115.76 = 8,376,167.04/x
  3. Step 3: Cross multiply
    13,603,989.12x = 18,772,115.76 × 8,376,167.04
  4. Step 4: Simplify right side
    13,603,989.12x = 157,238,377,299,976.56
  5. Step 5: Solve for x
    x = 157,238,377,299,976.56/13,603,989.12
  6. Step 6: Final answer
    x = 11,558,255.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.