Home / 77,469,712.80-116,204,569.20-20,736,016.80

Finding the Fourth Proportional to 77,469,712.80, 116,204,569.20 and 20,736,016.80

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Solution

The fourth proportional to 77,469,712.80, 116,204,569.20 and 20,736,016.80 is: 31,104,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,469,712.80 : 116,204,569.20 = 20,736,016.80 : x
  2. Step 2: Convert to fraction form
    77,469,712.80/116,204,569.20 = 20,736,016.80/x
  3. Step 3: Cross multiply
    77,469,712.80x = 116,204,569.20 × 20,736,016.80
  4. Step 4: Simplify right side
    77,469,712.80x = 2,409,619,899,167,962.50
  5. Step 5: Solve for x
    x = 2,409,619,899,167,962.50/77,469,712.80
  6. Step 6: Final answer
    x = 31,104,025.20

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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.