Home / 91,738,862.70-137,608,294.05-87,487,334.70

Finding the Fourth Proportional to 91,738,862.70, 137,608,294.05 and 87,487,334.70

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Solution

The fourth proportional to 91,738,862.70, 137,608,294.05 and 87,487,334.70 is: 131,231,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738,862.70 : 137,608,294.05 = 87,487,334.70 : x
  2. Step 2: Convert to fraction form
    91,738,862.70/137,608,294.05 = 87,487,334.70/x
  3. Step 3: Cross multiply
    91,738,862.70x = 137,608,294.05 × 87,487,334.70
  4. Step 4: Simplify right side
    91,738,862.70x = 12,038,982,879,048,370
  5. Step 5: Solve for x
    x = 12,038,982,879,048,370/91,738,862.70
  6. Step 6: Final answer
    x = 131,231,002.05

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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.