Home / 7,985,963,998.20-11,978,945,997.30-7,985,963,998.20

Finding the Fourth Proportional to 7,985,963,998.20, 11,978,945,997.30 and 7,985,963,998.20

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Solution

The fourth proportional to 7,985,963,998.20, 11,978,945,997.30 and 7,985,963,998.20 is: 11,978,945,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985,963,998.20 : 11,978,945,997.30 = 7,985,963,998.20 : x
  2. Step 2: Convert to fraction form
    7,985,963,998.20/11,978,945,997.30 = 7,985,963,998.20/x
  3. Step 3: Cross multiply
    7,985,963,998.20x = 11,978,945,997.30 × 7,985,963,998.20
  4. Step 4: Simplify right side
    7,985,963,998.20x = 95,663,431,470,819,786,752
  5. Step 5: Solve for x
    x = 95,663,431,470,819,786,752/7,985,963,998.20
  6. Step 6: Final answer
    x = 11,978,945,997.30

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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.