Home / 8,320,617.60-12,466,929.60-7,116,892.80

Finding the Fourth Proportional to 8,320,617.60, 12,466,929.60 and 7,116,892.80

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Solution

The fourth proportional to 8,320,617.60, 12,466,929.60 and 7,116,892.80 is: 10,663,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,617.60 : 12,466,929.60 = 7,116,892.80 : x
  2. Step 2: Convert to fraction form
    8,320,617.60/12,466,929.60 = 7,116,892.80/x
  3. Step 3: Cross multiply
    8,320,617.60x = 12,466,929.60 × 7,116,892.80
  4. Step 4: Simplify right side
    8,320,617.60x = 88,725,801,508,346.88
  5. Step 5: Solve for x
    x = 88,725,801,508,346.88/8,320,617.60
  6. Step 6: Final answer
    x = 10,663,367.29

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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.