Home / 79,115,813.20-118,673,719.80-48,504,811.60

Finding the Fourth Proportional to 79,115,813.20, 118,673,719.80 and 48,504,811.60

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Solution

The fourth proportional to 79,115,813.20, 118,673,719.80 and 48,504,811.60 is: 72,757,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115,813.20 : 118,673,719.80 = 48,504,811.60 : x
  2. Step 2: Convert to fraction form
    79,115,813.20/118,673,719.80 = 48,504,811.60/x
  3. Step 3: Cross multiply
    79,115,813.20x = 118,673,719.80 × 48,504,811.60
  4. Step 4: Simplify right side
    79,115,813.20x = 5,756,246,420,770,190
  5. Step 5: Solve for x
    x = 5,756,246,420,770,190/79,115,813.20
  6. Step 6: Final answer
    x = 72,757,217.40

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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.