Home / 18,714,923.40-28,025,145.90-12,290,392.20

Finding the Fourth Proportional to 18,714,923.40, 28,025,145.90 and 12,290,392.20

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Solution

The fourth proportional to 18,714,923.40, 28,025,145.90 and 12,290,392.20 is: 18,404,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,923.40 : 28,025,145.90 = 12,290,392.20 : x
  2. Step 2: Convert to fraction form
    18,714,923.40/28,025,145.90 = 12,290,392.20/x
  3. Step 3: Cross multiply
    18,714,923.40x = 28,025,145.90 × 12,290,392.20
  4. Step 4: Simplify right side
    18,714,923.40x = 344,440,034,573,221.94
  5. Step 5: Solve for x
    x = 344,440,034,573,221.94/18,714,923.40
  6. Step 6: Final answer
    x = 18,404,565.56

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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.