Home / 121,374,052.56-167,439,387.60-79,546,989.60

Finding the Fourth Proportional to 121,374,052.56, 167,439,387.60 and 79,546,989.60

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Solution

The fourth proportional to 121,374,052.56, 167,439,387.60 and 79,546,989.60 is: 109,737,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,374,052.56 : 167,439,387.60 = 79,546,989.60 : x
  2. Step 2: Convert to fraction form
    121,374,052.56/167,439,387.60 = 79,546,989.60/x
  3. Step 3: Cross multiply
    121,374,052.56x = 167,439,387.60 × 79,546,989.60
  4. Step 4: Simplify right side
    121,374,052.56x = 13,319,299,224,047,568
  5. Step 5: Solve for x
    x = 13,319,299,224,047,568/121,374,052.56
  6. Step 6: Final answer
    x = 109,737,616.43

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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.