Home / 20,478,905.60-30,674,121.60-16,939,961.60

Finding the Fourth Proportional to 20,478,905.60, 30,674,121.60 and 16,939,961.60

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Solution

The fourth proportional to 20,478,905.60, 30,674,121.60 and 16,939,961.60 is: 25,373,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,905.60 : 30,674,121.60 = 16,939,961.60 : x
  2. Step 2: Convert to fraction form
    20,478,905.60/30,674,121.60 = 16,939,961.60/x
  3. Step 3: Cross multiply
    20,478,905.60x = 30,674,121.60 × 16,939,961.60
  4. Step 4: Simplify right side
    20,478,905.60x = 519,618,442,017,730.62
  5. Step 5: Solve for x
    x = 519,618,442,017,730.62/20,478,905.60
  6. Step 6: Final answer
    x = 25,373,350.13

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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.