Home / 8,287,488,313.20-12,431,232,469.80-8,239,115,372.40

Finding the Fourth Proportional to 8,287,488,313.20, 12,431,232,469.80 and 8,239,115,372.40

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Solution

The fourth proportional to 8,287,488,313.20, 12,431,232,469.80 and 8,239,115,372.40 is: 12,358,673,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287,488,313.20 : 12,431,232,469.80 = 8,239,115,372.40 : x
  2. Step 2: Convert to fraction form
    8,287,488,313.20/12,431,232,469.80 = 8,239,115,372.40/x
  3. Step 3: Cross multiply
    8,287,488,313.20x = 12,431,232,469.80 × 8,239,115,372.40
  4. Step 4: Simplify right side
    8,287,488,313.20x = 102,422,358,539,807,195,136
  5. Step 5: Solve for x
    x = 102,422,358,539,807,195,136/8,287,488,313.20
  6. Step 6: Final answer
    x = 12,358,673,058.60

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Double scale
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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.