Home / 121,370,114.42-167,489,225.25-66,365,839.70

Finding the Fourth Proportional to 121,370,114.42, 167,489,225.25 and 66,365,839.70

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Solution

The fourth proportional to 121,370,114.42, 167,489,225.25 and 66,365,839.70 is: 91,584,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,370,114.42 : 167,489,225.25 = 66,365,839.70 : x
  2. Step 2: Convert to fraction form
    121,370,114.42/167,489,225.25 = 66,365,839.70/x
  3. Step 3: Cross multiply
    121,370,114.42x = 167,489,225.25 × 66,365,839.70
  4. Step 4: Simplify right side
    121,370,114.42x = 11,115,563,074,418,692
  5. Step 5: Solve for x
    x = 11,115,563,074,418,692/121,370,114.42
  6. Step 6: Final answer
    x = 91,584,020.72

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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.