Home / 143,981,610.84-198,638,086.14-83,620,328.90

Finding the Fourth Proportional to 143,981,610.84, 198,638,086.14 and 83,620,328.90

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Solution

The fourth proportional to 143,981,610.84, 198,638,086.14 and 83,620,328.90 is: 115,363,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981,610.84 : 198,638,086.14 = 83,620,328.90 : x
  2. Step 2: Convert to fraction form
    143,981,610.84/198,638,086.14 = 83,620,328.90/x
  3. Step 3: Cross multiply
    143,981,610.84x = 198,638,086.14 × 83,620,328.90
  4. Step 4: Simplify right side
    143,981,610.84x = 16,610,182,094,100,138
  5. Step 5: Solve for x
    x = 16,610,182,094,100,138/143,981,610.84
  6. Step 6: Final answer
    x = 115,363,218.94

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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.