Home / 77,668,843.20-116,503,264.80-53,482,372.80

Finding the Fourth Proportional to 77,668,843.20, 116,503,264.80 and 53,482,372.80

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Solution

The fourth proportional to 77,668,843.20, 116,503,264.80 and 53,482,372.80 is: 80,223,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668,843.20 : 116,503,264.80 = 53,482,372.80 : x
  2. Step 2: Convert to fraction form
    77,668,843.20/116,503,264.80 = 53,482,372.80/x
  3. Step 3: Cross multiply
    77,668,843.20x = 116,503,264.80 × 53,482,372.80
  4. Step 4: Simplify right side
    77,668,843.20x = 6,230,871,040,450,717
  5. Step 5: Solve for x
    x = 6,230,871,040,450,717/77,668,843.20
  6. Step 6: Final answer
    x = 80,223,559.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.