Home / 86,107,244-129,221,392.32-77,874,559.52

Finding the Fourth Proportional to 86,107,244, 129,221,392.32 and 77,874,559.52

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Solution

The fourth proportional to 86,107,244, 129,221,392.32 and 77,874,559.52 is: 116,866,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,107,244 : 129,221,392.32 = 77,874,559.52 : x
  2. Step 2: Convert to fraction form
    86,107,244/129,221,392.32 = 77,874,559.52/x
  3. Step 3: Cross multiply
    86,107,244x = 129,221,392.32 × 77,874,559.52
  4. Step 4: Simplify right side
    86,107,244x = 10,063,059,007,481,110
  5. Step 5: Solve for x
    x = 10,063,059,007,481,110/86,107,244
  6. Step 6: Final answer
    x = 116,866,578.70

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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.