Home / 143,981,606.32-198,638,079.95-83,620,324.39

Finding the Fourth Proportional to 143,981,606.32, 198,638,079.95 and 83,620,324.39

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Solution

The fourth proportional to 143,981,606.32, 198,638,079.95 and 83,620,324.39 is: 115,363,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981,606.32 : 198,638,079.95 = 83,620,324.39 : x
  2. Step 2: Convert to fraction form
    143,981,606.32/198,638,079.95 = 83,620,324.39/x
  3. Step 3: Cross multiply
    143,981,606.32x = 198,638,079.95 × 83,620,324.39
  4. Step 4: Simplify right side
    143,981,606.32x = 16,610,180,682,507,860
  5. Step 5: Solve for x
    x = 16,610,180,682,507,860/143,981,606.32
  6. Step 6: Final answer
    x = 115,363,212.75

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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.