Home / 20,260,521.40-30,364,977.30-8,279,721.40

Finding the Fourth Proportional to 20,260,521.40, 30,364,977.30 and 8,279,721.40

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Solution

The fourth proportional to 20,260,521.40, 30,364,977.30 and 8,279,721.40 is: 12,409,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,521.40 : 30,364,977.30 = 8,279,721.40 : x
  2. Step 2: Convert to fraction form
    20,260,521.40/30,364,977.30 = 8,279,721.40/x
  3. Step 3: Cross multiply
    20,260,521.40x = 30,364,977.30 × 8,279,721.40
  4. Step 4: Simplify right side
    20,260,521.40x = 251,413,552,361,324.25
  5. Step 5: Solve for x
    x = 251,413,552,361,324.25/20,260,521.40
  6. Step 6: Final answer
    x = 12,409,036.64

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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.