Home / 154,605,469.80-231,936,198.30-77,735,044.20

Finding the Fourth Proportional to 154,605,469.80, 231,936,198.30 and 77,735,044.20

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Solution

The fourth proportional to 154,605,469.80, 231,936,198.30 and 77,735,044.20 is: 116,616,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,605,469.80 : 231,936,198.30 = 77,735,044.20 : x
  2. Step 2: Convert to fraction form
    154,605,469.80/231,936,198.30 = 77,735,044.20/x
  3. Step 3: Cross multiply
    154,605,469.80x = 231,936,198.30 × 77,735,044.20
  4. Step 4: Simplify right side
    154,605,469.80x = 18,029,570,626,430,468
  5. Step 5: Solve for x
    x = 18,029,570,626,430,468/154,605,469.80
  6. Step 6: Final answer
    x = 116,616,641.38

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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.