Home / 8,515,511.10-12,776,765.85-3,126,743.10

Finding the Fourth Proportional to 8,515,511.10, 12,776,765.85 and 3,126,743.10

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Solution

The fourth proportional to 8,515,511.10, 12,776,765.85 and 3,126,743.10 is: 4,691,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515,511.10 : 12,776,765.85 = 3,126,743.10 : x
  2. Step 2: Convert to fraction form
    8,515,511.10/12,776,765.85 = 3,126,743.10/x
  3. Step 3: Cross multiply
    8,515,511.10x = 12,776,765.85 × 3,126,743.10
  4. Step 4: Simplify right side
    8,515,511.10x = 39,949,664,461,803.13
  5. Step 5: Solve for x
    x = 39,949,664,461,803.13/8,515,511.10
  6. Step 6: Final answer
    x = 4,691,399.49

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Double scale
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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.