Home / 891,653,320.20-1,337,479,980.30-309,193,984.20

Finding the Fourth Proportional to 891,653,320.20, 1,337,479,980.30 and 309,193,984.20

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Solution

The fourth proportional to 891,653,320.20, 1,337,479,980.30 and 309,193,984.20 is: 463,790,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,653,320.20 : 1,337,479,980.30 = 309,193,984.20 : x
  2. Step 2: Convert to fraction form
    891,653,320.20/1,337,479,980.30 = 309,193,984.20/x
  3. Step 3: Cross multiply
    891,653,320.20x = 1,337,479,980.30 × 309,193,984.20
  4. Step 4: Simplify right side
    891,653,320.20x = 413,540,763,896,694,464
  5. Step 5: Solve for x
    x = 413,540,763,896,694,464/891,653,320.20
  6. Step 6: Final answer
    x = 463,790,976.30

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Double scale
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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.