Home / 20,957,223.12-31,424,424.78-7,306,698.12

Finding the Fourth Proportional to 20,957,223.12, 31,424,424.78 and 7,306,698.12

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Solution

The fourth proportional to 20,957,223.12, 31,424,424.78 and 7,306,698.12 is: 10,956,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957,223.12 : 31,424,424.78 = 7,306,698.12 : x
  2. Step 2: Convert to fraction form
    20,957,223.12/31,424,424.78 = 7,306,698.12/x
  3. Step 3: Cross multiply
    20,957,223.12x = 31,424,424.78 × 7,306,698.12
  4. Step 4: Simplify right side
    20,957,223.12x = 229,608,785,462,107.44
  5. Step 5: Solve for x
    x = 229,608,785,462,107.44/20,957,223.12
  6. Step 6: Final answer
    x = 10,956,069.14

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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.