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Finding the Fourth Proportional to 18,625,672.80, 27,970,390.80 and 10,122,616.80

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Solution

The fourth proportional to 18,625,672.80, 27,970,390.80 and 10,122,616.80 is: 15,201,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625,672.80 : 27,970,390.80 = 10,122,616.80 : x
  2. Step 2: Convert to fraction form
    18,625,672.80/27,970,390.80 = 10,122,616.80/x
  3. Step 3: Cross multiply
    18,625,672.80x = 27,970,390.80 × 10,122,616.80
  4. Step 4: Simplify right side
    18,625,672.80x = 283,133,547,814,645.44
  5. Step 5: Solve for x
    x = 283,133,547,814,645.44/18,625,672.80
  6. Step 6: Final answer
    x = 15,201,252.10

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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.