Home / 143,981,633.03-198,638,116.56-83,620,350.95

Finding the Fourth Proportional to 143,981,633.03, 198,638,116.56 and 83,620,350.95

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Solution

The fourth proportional to 143,981,633.03, 198,638,116.56 and 83,620,350.95 is: 115,363,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981,633.03 : 198,638,116.56 = 83,620,350.95 : x
  2. Step 2: Convert to fraction form
    143,981,633.03/198,638,116.56 = 83,620,350.95/x
  3. Step 3: Cross multiply
    143,981,633.03x = 198,638,116.56 × 83,620,350.95
  4. Step 4: Simplify right side
    143,981,633.03x = 16,610,189,017,801,014
  5. Step 5: Solve for x
    x = 16,610,189,017,801,014/143,981,633.03
  6. Step 6: Final answer
    x = 115,363,249.25

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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.