Home / 143,779,435.48-198,424,512.75-79,332,025.49

Finding the Fourth Proportional to 143,779,435.48, 198,424,512.75 and 79,332,025.49

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Solution

The fourth proportional to 143,779,435.48, 198,424,512.75 and 79,332,025.49 is: 109,483,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,779,435.48 : 198,424,512.75 = 79,332,025.49 : x
  2. Step 2: Convert to fraction form
    143,779,435.48/198,424,512.75 = 79,332,025.49/x
  3. Step 3: Cross multiply
    143,779,435.48x = 198,424,512.75 × 79,332,025.49
  4. Step 4: Simplify right side
    143,779,435.48x = 15,741,418,503,931,860
  5. Step 5: Solve for x
    x = 15,741,418,503,931,860/143,779,435.48
  6. Step 6: Final answer
    x = 109,483,101.33

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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.