Home / 18,714,943.90-28,025,176.65-12,290,412.70

Finding the Fourth Proportional to 18,714,943.90, 28,025,176.65 and 12,290,412.70

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Solution

The fourth proportional to 18,714,943.90, 28,025,176.65 and 12,290,412.70 is: 18,404,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,943.90 : 28,025,176.65 = 12,290,412.70 : x
  2. Step 2: Convert to fraction form
    18,714,943.90/28,025,176.65 = 12,290,412.70/x
  3. Step 3: Cross multiply
    18,714,943.90x = 28,025,176.65 × 12,290,412.70
  4. Step 4: Simplify right side
    18,714,943.90x = 344,440,987,018,903.44
  5. Step 5: Solve for x
    x = 344,440,987,018,903.44/18,714,943.90
  6. Step 6: Final answer
    x = 18,404,596.29

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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.