Home / 8,320,994.40-12,481,491.60-5,115,727.20

Finding the Fourth Proportional to 8,320,994.40, 12,481,491.60 and 5,115,727.20

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Solution

The fourth proportional to 8,320,994.40, 12,481,491.60 and 5,115,727.20 is: 7,673,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,994.40 : 12,481,491.60 = 5,115,727.20 : x
  2. Step 2: Convert to fraction form
    8,320,994.40/12,481,491.60 = 5,115,727.20/x
  3. Step 3: Cross multiply
    8,320,994.40x = 12,481,491.60 × 5,115,727.20
  4. Step 4: Simplify right side
    8,320,994.40x = 63,851,906,074,691.52
  5. Step 5: Solve for x
    x = 63,851,906,074,691.52/8,320,994.40
  6. Step 6: Final answer
    x = 7,673,590.80

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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.