Home / 101,187,861.33-139,639,293.72-54,778,113.75

Finding the Fourth Proportional to 101,187,861.33, 139,639,293.72 and 54,778,113.75

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Solution

The fourth proportional to 101,187,861.33, 139,639,293.72 and 54,778,113.75 is: 75,593,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,187,861.33 : 139,639,293.72 = 54,778,113.75 : x
  2. Step 2: Convert to fraction form
    101,187,861.33/139,639,293.72 = 54,778,113.75/x
  3. Step 3: Cross multiply
    101,187,861.33x = 139,639,293.72 × 54,778,113.75
  4. Step 4: Simplify right side
    101,187,861.33x = 7,649,177,115,363,821
  5. Step 5: Solve for x
    x = 7,649,177,115,363,821/101,187,861.33
  6. Step 6: Final answer
    x = 75,593,821.38

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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.