Home / 639,396,028.40-959,094,042.60-639,396,028.40

Finding the Fourth Proportional to 639,396,028.40, 959,094,042.60 and 639,396,028.40

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Solution

The fourth proportional to 639,396,028.40, 959,094,042.60 and 639,396,028.40 is: 959,094,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,396,028.40 : 959,094,042.60 = 639,396,028.40 : x
  2. Step 2: Convert to fraction form
    639,396,028.40/959,094,042.60 = 639,396,028.40/x
  3. Step 3: Cross multiply
    639,396,028.40x = 959,094,042.60 × 639,396,028.40
  4. Step 4: Simplify right side
    639,396,028.40x = 613,240,921,700,540,416
  5. Step 5: Solve for x
    x = 613,240,921,700,540,416/639,396,028.40
  6. Step 6: Final answer
    x = 959,094,042.60

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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.