Home / 10,940,129.60-16,410,194.40-7,916,820.80

Finding the Fourth Proportional to 10,940,129.60, 16,410,194.40 and 7,916,820.80

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Solution

The fourth proportional to 10,940,129.60, 16,410,194.40 and 7,916,820.80 is: 11,875,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940,129.60 : 16,410,194.40 = 7,916,820.80 : x
  2. Step 2: Convert to fraction form
    10,940,129.60/16,410,194.40 = 7,916,820.80/x
  3. Step 3: Cross multiply
    10,940,129.60x = 16,410,194.40 × 7,916,820.80
  4. Step 4: Simplify right side
    10,940,129.60x = 129,916,568,357,963.52
  5. Step 5: Solve for x
    x = 129,916,568,357,963.52/10,940,129.60
  6. Step 6: Final answer
    x = 11,875,231.20

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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.