Home / 86,907,919.20-130,377,625.20-43,668,304.80

Finding the Fourth Proportional to 86,907,919.20, 130,377,625.20 and 43,668,304.80

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Solution

The fourth proportional to 86,907,919.20, 130,377,625.20 and 43,668,304.80 is: 65,510,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907,919.20 : 130,377,625.20 = 43,668,304.80 : x
  2. Step 2: Convert to fraction form
    86,907,919.20/130,377,625.20 = 43,668,304.80/x
  3. Step 3: Cross multiply
    86,907,919.20x = 130,377,625.20 × 43,668,304.80
  4. Step 4: Simplify right side
    86,907,919.20x = 5,693,369,876,333,761
  5. Step 5: Solve for x
    x = 5,693,369,876,333,761/86,907,919.20
  6. Step 6: Final answer
    x = 65,510,369.24

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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.