Home / 143,392,829.97-197,870,786.50-80,656,437.91

Finding the Fourth Proportional to 143,392,829.97, 197,870,786.50 and 80,656,437.91

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Solution

The fourth proportional to 143,392,829.97, 197,870,786.50 and 80,656,437.91 is: 111,299,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,392,829.97 : 197,870,786.50 = 80,656,437.91 : x
  2. Step 2: Convert to fraction form
    143,392,829.97/197,870,786.50 = 80,656,437.91/x
  3. Step 3: Cross multiply
    143,392,829.97x = 197,870,786.50 × 80,656,437.91
  4. Step 4: Simplify right side
    143,392,829.97x = 15,959,552,805,136,834
  5. Step 5: Solve for x
    x = 15,959,552,805,136,834/143,392,829.97
  6. Step 6: Final answer
    x = 111,299,517.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.