Home / 639,324,843.12-882,268,284.96-345,969,411.12

Finding the Fourth Proportional to 639,324,843.12, 882,268,284.96 and 345,969,411.12

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Solution

The fourth proportional to 639,324,843.12, 882,268,284.96 and 345,969,411.12 is: 477,437,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,324,843.12 : 882,268,284.96 = 345,969,411.12 : x
  2. Step 2: Convert to fraction form
    639,324,843.12/882,268,284.96 = 345,969,411.12/x
  3. Step 3: Cross multiply
    639,324,843.12x = 882,268,284.96 × 345,969,411.12
  4. Step 4: Simplify right side
    639,324,843.12x = 305,237,838,997,463,552
  5. Step 5: Solve for x
    x = 305,237,838,997,463,552/639,324,843.12
  6. Step 6: Final answer
    x = 477,437,788.13

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Double scale
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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.