Home / 121,451,865.72-167,607,571.62-66,446,463.48

Finding the Fourth Proportional to 121,451,865.72, 167,607,571.62 and 66,446,463.48

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Solution

The fourth proportional to 121,451,865.72, 167,607,571.62 and 66,446,463.48 is: 91,698,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451,865.72 : 167,607,571.62 = 66,446,463.48 : x
  2. Step 2: Convert to fraction form
    121,451,865.72/167,607,571.62 = 66,446,463.48/x
  3. Step 3: Cross multiply
    121,451,865.72x = 167,607,571.62 × 66,446,463.48
  4. Step 4: Simplify right side
    121,451,865.72x = 11,136,930,386,619,814
  5. Step 5: Solve for x
    x = 11,136,930,386,619,814/121,451,865.72
  6. Step 6: Final answer
    x = 91,698,306.33

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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.