Home / 20,763,604.30-31,145,406.45-9,978,304.45

Finding the Fourth Proportional to 20,763,604.30, 31,145,406.45 and 9,978,304.45

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Solution

The fourth proportional to 20,763,604.30, 31,145,406.45 and 9,978,304.45 is: 14,967,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,604.30 : 31,145,406.45 = 9,978,304.45 : x
  2. Step 2: Convert to fraction form
    20,763,604.30/31,145,406.45 = 9,978,304.45/x
  3. Step 3: Cross multiply
    20,763,604.30x = 31,145,406.45 × 9,978,304.45
  4. Step 4: Simplify right side
    20,763,604.30x = 310,778,347,777,093.69
  5. Step 5: Solve for x
    x = 310,778,347,777,093.69/20,763,604.30
  6. Step 6: Final answer
    x = 14,967,456.68

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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.