Home / 91,771,771.38-137,659,116.75-51,089,787.06

Finding the Fourth Proportional to 91,771,771.38, 137,659,116.75 and 51,089,787.06

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Solution

The fourth proportional to 91,771,771.38, 137,659,116.75 and 51,089,787.06 is: 76,635,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771,771.38 : 137,659,116.75 = 51,089,787.06 : x
  2. Step 2: Convert to fraction form
    91,771,771.38/137,659,116.75 = 51,089,787.06/x
  3. Step 3: Cross multiply
    91,771,771.38x = 137,659,116.75 × 51,089,787.06
  4. Step 4: Simplify right side
    91,771,771.38x = 7,032,974,961,625,180
  5. Step 5: Solve for x
    x = 7,032,974,961,625,180/91,771,771.38
  6. Step 6: Final answer
    x = 76,635,493.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.