Home / 143,266,022.73-197,705,220.17-79,685,933.13

Finding the Fourth Proportional to 143,266,022.73, 197,705,220.17 and 79,685,933.13

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Solution

The fourth proportional to 143,266,022.73, 197,705,220.17 and 79,685,933.13 is: 109,965,535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266,022.73 : 197,705,220.17 = 79,685,933.13 : x
  2. Step 2: Convert to fraction form
    143,266,022.73/197,705,220.17 = 79,685,933.13/x
  3. Step 3: Cross multiply
    143,266,022.73x = 197,705,220.17 × 79,685,933.13
  4. Step 4: Simplify right side
    143,266,022.73x = 15,754,324,953,520,116
  5. Step 5: Solve for x
    x = 15,754,324,953,520,116/143,266,022.73
  6. Step 6: Final answer
    x = 109,965,535.81

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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.