Home / 18,738,020.20-28,107,030.30-14,481,243.40

Finding the Fourth Proportional to 18,738,020.20, 28,107,030.30 and 14,481,243.40

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Solution

The fourth proportional to 18,738,020.20, 28,107,030.30 and 14,481,243.40 is: 21,721,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,020.20 : 28,107,030.30 = 14,481,243.40 : x
  2. Step 2: Convert to fraction form
    18,738,020.20/28,107,030.30 = 14,481,243.40/x
  3. Step 3: Cross multiply
    18,738,020.20x = 28,107,030.30 × 14,481,243.40
  4. Step 4: Simplify right side
    18,738,020.20x = 407,024,747,025,475.06
  5. Step 5: Solve for x
    x = 407,024,747,025,475.06/18,738,020.20
  6. Step 6: Final answer
    x = 21,721,865.10

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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.