Home / 86,904,367.20-130,372,297.20-43,664,752.80

Finding the Fourth Proportional to 86,904,367.20, 130,372,297.20 and 43,664,752.80

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Solution

The fourth proportional to 86,904,367.20, 130,372,297.20 and 43,664,752.80 is: 65,505,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,904,367.20 : 130,372,297.20 = 43,664,752.80 : x
  2. Step 2: Convert to fraction form
    86,904,367.20/130,372,297.20 = 43,664,752.80/x
  3. Step 3: Cross multiply
    86,904,367.20x = 130,372,297.20 × 43,664,752.80
  4. Step 4: Simplify right side
    86,904,367.20x = 5,692,674,129,206,132
  5. Step 5: Solve for x
    x = 5,692,674,129,206,132/86,904,367.20
  6. Step 6: Final answer
    x = 65,505,040.92

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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.