Home / 20,995,998.25-31,493,997.78-5,039,646.25

Finding the Fourth Proportional to 20,995,998.25, 31,493,997.78 and 5,039,646.25

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Solution

The fourth proportional to 20,995,998.25, 31,493,997.78 and 5,039,646.25 is: 7,559,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995,998.25 : 31,493,997.78 = 5,039,646.25 : x
  2. Step 2: Convert to fraction form
    20,995,998.25/31,493,997.78 = 5,039,646.25/x
  3. Step 3: Cross multiply
    20,995,998.25x = 31,493,997.78 × 5,039,646.25
  4. Step 4: Simplify right side
    20,995,998.25x = 158,718,607,809,485.34
  5. Step 5: Solve for x
    x = 158,718,607,809,485.34/20,995,998.25
  6. Step 6: Final answer
    x = 7,559,469.47

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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.