Home / 8,514,242,435.20-12,771,363,652.80-7,080,970,115.20

Finding the Fourth Proportional to 8,514,242,435.20, 12,771,363,652.80 and 7,080,970,115.20

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Solution

The fourth proportional to 8,514,242,435.20, 12,771,363,652.80 and 7,080,970,115.20 is: 10,621,455,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514,242,435.20 : 12,771,363,652.80 = 7,080,970,115.20 : x
  2. Step 2: Convert to fraction form
    8,514,242,435.20/12,771,363,652.80 = 7,080,970,115.20/x
  3. Step 3: Cross multiply
    8,514,242,435.20x = 12,771,363,652.80 × 7,080,970,115.20
  4. Step 4: Simplify right side
    8,514,242,435.20x = 90,433,644,355,828,301,824
  5. Step 5: Solve for x
    x = 90,433,644,355,828,301,824/8,514,242,435.20
  6. Step 6: Final answer
    x = 10,621,455,172.80

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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.