Home / 91,771,771.88-137,659,117.50-51,089,787.56

Finding the Fourth Proportional to 91,771,771.88, 137,659,117.50 and 51,089,787.56

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Solution

The fourth proportional to 91,771,771.88, 137,659,117.50 and 51,089,787.56 is: 76,635,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771,771.88 : 137,659,117.50 = 51,089,787.56 : x
  2. Step 2: Convert to fraction form
    91,771,771.88/137,659,117.50 = 51,089,787.56/x
  3. Step 3: Cross multiply
    91,771,771.88x = 137,659,117.50 × 51,089,787.56
  4. Step 4: Simplify right side
    91,771,771.88x = 7,032,975,068,772,079
  5. Step 5: Solve for x
    x = 7,032,975,068,772,079/91,771,771.88
  6. Step 6: Final answer
    x = 76,635,493.95

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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.