Home / 123,808,378.20-170,675,481.42-86,522,895.60

Finding the Fourth Proportional to 123,808,378.20, 170,675,481.42 and 86,522,895.60

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Solution

The fourth proportional to 123,808,378.20, 170,675,481.42 and 86,522,895.60 is: 119,275,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,808,378.20 : 170,675,481.42 = 86,522,895.60 : x
  2. Step 2: Convert to fraction form
    123,808,378.20/170,675,481.42 = 86,522,895.60/x
  3. Step 3: Cross multiply
    123,808,378.20x = 170,675,481.42 × 86,522,895.60
  4. Step 4: Simplify right side
    123,808,378.20x = 14,767,336,860,382,398
  5. Step 5: Solve for x
    x = 14,767,336,860,382,398/123,808,378.20
  6. Step 6: Final answer
    x = 119,275,747.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.