Home / 18,904,043.20-28,356,064.80-9,324,011.20

Finding the Fourth Proportional to 18,904,043.20, 28,356,064.80 and 9,324,011.20

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Solution

The fourth proportional to 18,904,043.20, 28,356,064.80 and 9,324,011.20 is: 13,986,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904,043.20 : 28,356,064.80 = 9,324,011.20 : x
  2. Step 2: Convert to fraction form
    18,904,043.20/28,356,064.80 = 9,324,011.20/x
  3. Step 3: Cross multiply
    18,904,043.20x = 28,356,064.80 × 9,324,011.20
  4. Step 4: Simplify right side
    18,904,043.20x = 264,392,265,783,125.75
  5. Step 5: Solve for x
    x = 264,392,265,783,125.75/18,904,043.20
  6. Step 6: Final answer
    x = 13,986,016.80

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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.