Home / 121,244,489.72-167,317,462.82-65,489,909.80

Finding the Fourth Proportional to 121,244,489.72, 167,317,462.82 and 65,489,909.80

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Solution

The fourth proportional to 121,244,489.72, 167,317,462.82 and 65,489,909.80 is: 90,376,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,244,489.72 : 167,317,462.82 = 65,489,909.80 : x
  2. Step 2: Convert to fraction form
    121,244,489.72/167,317,462.82 = 65,489,909.80/x
  3. Step 3: Cross multiply
    121,244,489.72x = 167,317,462.82 × 65,489,909.80
  4. Step 4: Simplify right side
    121,244,489.72x = 10,957,605,548,046,652
  5. Step 5: Solve for x
    x = 10,957,605,548,046,652/121,244,489.72
  6. Step 6: Final answer
    x = 90,376,111.72

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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.