Home / 86,324,716.80-129,487,075.20-82,343,404.80

Finding the Fourth Proportional to 86,324,716.80, 129,487,075.20 and 82,343,404.80

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Solution

The fourth proportional to 86,324,716.80, 129,487,075.20 and 82,343,404.80 is: 123,515,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,324,716.80 : 129,487,075.20 = 82,343,404.80 : x
  2. Step 2: Convert to fraction form
    86,324,716.80/129,487,075.20 = 82,343,404.80/x
  3. Step 3: Cross multiply
    86,324,716.80x = 129,487,075.20 × 82,343,404.80
  4. Step 4: Simplify right side
    86,324,716.80x = 10,662,406,649,561,640
  5. Step 5: Solve for x
    x = 10,662,406,649,561,640/86,324,716.80
  6. Step 6: Final answer
    x = 123,515,107.20

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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.