Home / 8,289,178.37-12,420,021.54-5,040,890.15

Finding the Fourth Proportional to 8,289,178.37, 12,420,021.54 and 5,040,890.15

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Solution

The fourth proportional to 8,289,178.37, 12,420,021.54 and 5,040,890.15 is: 7,552,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289,178.37 : 12,420,021.54 = 5,040,890.15 : x
  2. Step 2: Convert to fraction form
    8,289,178.37/12,420,021.54 = 5,040,890.15/x
  3. Step 3: Cross multiply
    8,289,178.37x = 12,420,021.54 × 5,040,890.15
  4. Step 4: Simplify right side
    8,289,178.37x = 62,607,964,181,673.71
  5. Step 5: Solve for x
    x = 62,607,964,181,673.71/8,289,178.37
  6. Step 6: Final answer
    x = 7,552,975.87

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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.