Home / 128,750,590.87-177,680,487.67-73,757,076.19

Finding the Fourth Proportional to 128,750,590.87, 177,680,487.67 and 73,757,076.19

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Solution

The fourth proportional to 128,750,590.87, 177,680,487.67 and 73,757,076.19 is: 101,787,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,750,590.87 : 177,680,487.67 = 73,757,076.19 : x
  2. Step 2: Convert to fraction form
    128,750,590.87/177,680,487.67 = 73,757,076.19/x
  3. Step 3: Cross multiply
    128,750,590.87x = 177,680,487.67 × 73,757,076.19
  4. Step 4: Simplify right side
    128,750,590.87x = 13,105,193,265,923,950
  5. Step 5: Solve for x
    x = 13,105,193,265,923,950/128,750,590.87
  6. Step 6: Final answer
    x = 101,787,441.73

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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.