Home / 20,478,906.60-30,674,123.10-16,939,962.60

Finding the Fourth Proportional to 20,478,906.60, 30,674,123.10 and 16,939,962.60

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Solution

The fourth proportional to 20,478,906.60, 30,674,123.10 and 16,939,962.60 is: 25,373,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,906.60 : 30,674,123.10 = 16,939,962.60 : x
  2. Step 2: Convert to fraction form
    20,478,906.60/30,674,123.10 = 16,939,962.60/x
  3. Step 3: Cross multiply
    20,478,906.60x = 30,674,123.10 × 16,939,962.60
  4. Step 4: Simplify right side
    20,478,906.60x = 519,618,498,101,796.12
  5. Step 5: Solve for x
    x = 519,618,498,101,796.12/20,478,906.60
  6. Step 6: Final answer
    x = 25,373,351.63

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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.