Home / 8,305,037.60-12,457,556.40-5,435,256.20

Finding the Fourth Proportional to 8,305,037.60, 12,457,556.40 and 5,435,256.20

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Solution

The fourth proportional to 8,305,037.60, 12,457,556.40 and 5,435,256.20 is: 8,152,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,037.60 : 12,457,556.40 = 5,435,256.20 : x
  2. Step 2: Convert to fraction form
    8,305,037.60/12,457,556.40 = 5,435,256.20/x
  3. Step 3: Cross multiply
    8,305,037.60x = 12,457,556.40 × 5,435,256.20
  4. Step 4: Simplify right side
    8,305,037.60x = 67,710,010,659,949.69
  5. Step 5: Solve for x
    x = 67,710,010,659,949.69/8,305,037.60
  6. Step 6: Final answer
    x = 8,152,884.30

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Similar ratio
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1.5x scale

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.