Home / 13,188,722.31-18,209,319.09-8,234,707.41

Finding the Fourth Proportional to 13,188,722.31, 18,209,319.09 and 8,234,707.41

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Solution

The fourth proportional to 13,188,722.31, 18,209,319.09 and 8,234,707.41 is: 11,369,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,722.31 : 18,209,319.09 = 8,234,707.41 : x
  2. Step 2: Convert to fraction form
    13,188,722.31/18,209,319.09 = 8,234,707.41/x
  3. Step 3: Cross multiply
    13,188,722.31x = 18,209,319.09 × 8,234,707.41
  4. Step 4: Simplify right side
    13,188,722.31x = 149,948,414,841,477.47
  5. Step 5: Solve for x
    x = 149,948,414,841,477.47/13,188,722.31
  6. Step 6: Final answer
    x = 11,369,442.11

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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.