Home / 268,118,309.56-402,170,029.87-71,383,410.65

Finding the Fourth Proportional to 268,118,309.56, 402,170,029.87 and 71,383,410.65

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Solution

The fourth proportional to 268,118,309.56, 402,170,029.87 and 71,383,410.65 is: 107,073,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,118,309.56 : 402,170,029.87 = 71,383,410.65 : x
  2. Step 2: Convert to fraction form
    268,118,309.56/402,170,029.87 = 71,383,410.65/x
  3. Step 3: Cross multiply
    268,118,309.56x = 402,170,029.87 × 71,383,410.65
  4. Step 4: Simplify right side
    268,118,309.56x = 28,708,268,392,574,596
  5. Step 5: Solve for x
    x = 28,708,268,392,574,596/268,118,309.56
  6. Step 6: Final answer
    x = 107,073,136.63

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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.