Home / 85,770,430.20-128,672,234.10-25,188,132.60

Finding the Fourth Proportional to 85,770,430.20, 128,672,234.10 and 25,188,132.60

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Solution

The fourth proportional to 85,770,430.20, 128,672,234.10 and 25,188,132.60 is: 37,787,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,770,430.20 : 128,672,234.10 = 25,188,132.60 : x
  2. Step 2: Convert to fraction form
    85,770,430.20/128,672,234.10 = 25,188,132.60/x
  3. Step 3: Cross multiply
    85,770,430.20x = 128,672,234.10 × 25,188,132.60
  4. Step 4: Simplify right side
    85,770,430.20x = 3,241,013,294,449,041.50
  5. Step 5: Solve for x
    x = 3,241,013,294,449,041.50/85,770,430.20
  6. Step 6: Final answer
    x = 37,787,070.52

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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.