Home / 77,277,727.40-115,916,591.10-71,438,469.80

Finding the Fourth Proportional to 77,277,727.40, 115,916,591.10 and 71,438,469.80

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Solution

The fourth proportional to 77,277,727.40, 115,916,591.10 and 71,438,469.80 is: 107,157,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,277,727.40 : 115,916,591.10 = 71,438,469.80 : x
  2. Step 2: Convert to fraction form
    77,277,727.40/115,916,591.10 = 71,438,469.80/x
  3. Step 3: Cross multiply
    77,277,727.40x = 115,916,591.10 × 71,438,469.80
  4. Step 4: Simplify right side
    77,277,727.40x = 8,280,903,892,616,298
  5. Step 5: Solve for x
    x = 8,280,903,892,616,298/77,277,727.40
  6. Step 6: Final answer
    x = 107,157,704.70

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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.