Home / 8,076,353.28-11,122,689.60-7,899,993.60

Finding the Fourth Proportional to 8,076,353.28, 11,122,689.60 and 7,899,993.60

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Solution

The fourth proportional to 8,076,353.28, 11,122,689.60 and 7,899,993.60 is: 10,879,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076,353.28 : 11,122,689.60 = 7,899,993.60 : x
  2. Step 2: Convert to fraction form
    8,076,353.28/11,122,689.60 = 7,899,993.60/x
  3. Step 3: Cross multiply
    8,076,353.28x = 11,122,689.60 × 7,899,993.60
  4. Step 4: Simplify right side
    8,076,353.28x = 87,869,176,654,786.55
  5. Step 5: Solve for x
    x = 87,869,176,654,786.55/8,076,353.28
  6. Step 6: Final answer
    x = 10,879,808.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.