Home / 20,466,333.20-28,243,393.58-11,173,902.96

Finding the Fourth Proportional to 20,466,333.20, 28,243,393.58 and 11,173,902.96

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Solution

The fourth proportional to 20,466,333.20, 28,243,393.58 and 11,173,902.96 is: 15,419,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,333.20 : 28,243,393.58 = 11,173,902.96 : x
  2. Step 2: Convert to fraction form
    20,466,333.20/28,243,393.58 = 11,173,902.96/x
  3. Step 3: Cross multiply
    20,466,333.20x = 28,243,393.58 × 11,173,902.96
  4. Step 4: Simplify right side
    20,466,333.20x = 315,588,939,124,007
  5. Step 5: Solve for x
    x = 315,588,939,124,007/20,466,333.20
  6. Step 6: Final answer
    x = 15,419,906.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.