Home / 86,915,145.20-130,388,464.20-43,675,530.80

Finding the Fourth Proportional to 86,915,145.20, 130,388,464.20 and 43,675,530.80

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Solution

The fourth proportional to 86,915,145.20, 130,388,464.20 and 43,675,530.80 is: 65,521,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,915,145.20 : 130,388,464.20 = 43,675,530.80 : x
  2. Step 2: Convert to fraction form
    86,915,145.20/130,388,464.20 = 43,675,530.80/x
  3. Step 3: Cross multiply
    86,915,145.20x = 130,388,464.20 × 43,675,530.80
  4. Step 4: Simplify right side
    86,915,145.20x = 5,694,785,384,131,797
  5. Step 5: Solve for x
    x = 5,694,785,384,131,797/86,915,145.20
  6. Step 6: Final answer
    x = 65,521,208.89

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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.