Home / 86,191,546.80-129,350,305.80-60,682,378.80

Finding the Fourth Proportional to 86,191,546.80, 129,350,305.80 and 60,682,378.80

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Solution

The fourth proportional to 86,191,546.80, 129,350,305.80 and 60,682,378.80 is: 91,067,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,191,546.80 : 129,350,305.80 = 60,682,378.80 : x
  2. Step 2: Convert to fraction form
    86,191,546.80/129,350,305.80 = 60,682,378.80/x
  3. Step 3: Cross multiply
    86,191,546.80x = 129,350,305.80 × 60,682,378.80
  4. Step 4: Simplify right side
    86,191,546.80x = 7,849,284,254,451,436
  5. Step 5: Solve for x
    x = 7,849,284,254,451,436/86,191,546.80
  6. Step 6: Final answer
    x = 91,067,912.64

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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.