Home / 20,745,115.37-31,122,560.78-7,098,410.33

Finding the Fourth Proportional to 20,745,115.37, 31,122,560.78 and 7,098,410.33

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Solution

The fourth proportional to 20,745,115.37, 31,122,560.78 and 7,098,410.33 is: 10,649,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745,115.37 : 31,122,560.78 = 7,098,410.33 : x
  2. Step 2: Convert to fraction form
    20,745,115.37/31,122,560.78 = 7,098,410.33/x
  3. Step 3: Cross multiply
    20,745,115.37x = 31,122,560.78 × 7,098,410.33
  4. Step 4: Simplify right side
    20,745,115.37x = 220,920,706,901,312.81
  5. Step 5: Solve for x
    x = 220,920,706,901,312.81/20,745,115.37
  6. Step 6: Final answer
    x = 10,649,287.94

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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.