Home / 91,738,609.20-137,607,913.80-87,487,081.20

Finding the Fourth Proportional to 91,738,609.20, 137,607,913.80 and 87,487,081.20

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Solution

The fourth proportional to 91,738,609.20, 137,607,913.80 and 87,487,081.20 is: 131,230,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738,609.20 : 137,607,913.80 = 87,487,081.20 : x
  2. Step 2: Convert to fraction form
    91,738,609.20/137,607,913.80 = 87,487,081.20/x
  3. Step 3: Cross multiply
    91,738,609.20x = 137,607,913.80 × 87,487,081.20
  4. Step 4: Simplify right side
    91,738,609.20x = 12,038,914,728,383,202
  5. Step 5: Solve for x
    x = 12,038,914,728,383,202/91,738,609.20
  6. Step 6: Final answer
    x = 131,230,621.80

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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.