Home / 82,263,679.20-123,395,518.80-20,852,719.20

Finding the Fourth Proportional to 82,263,679.20, 123,395,518.80 and 20,852,719.20

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Solution

The fourth proportional to 82,263,679.20, 123,395,518.80 and 20,852,719.20 is: 31,279,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,263,679.20 : 123,395,518.80 = 20,852,719.20 : x
  2. Step 2: Convert to fraction form
    82,263,679.20/123,395,518.80 = 20,852,719.20/x
  3. Step 3: Cross multiply
    82,263,679.20x = 123,395,518.80 × 20,852,719.20
  4. Step 4: Simplify right side
    82,263,679.20x = 2,573,132,104,074,721
  5. Step 5: Solve for x
    x = 2,573,132,104,074,721/82,263,679.20
  6. Step 6: Final answer
    x = 31,279,078.80

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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.