Home / 12,947,367.20-17,866,094.66-7,145,775.27

Finding the Fourth Proportional to 12,947,367.20, 17,866,094.66 and 7,145,775.27

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Solution

The fourth proportional to 12,947,367.20, 17,866,094.66 and 7,145,775.27 is: 9,860,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,367.20 : 17,866,094.66 = 7,145,775.27 : x
  2. Step 2: Convert to fraction form
    12,947,367.20/17,866,094.66 = 7,145,775.27/x
  3. Step 3: Cross multiply
    12,947,367.20x = 17,866,094.66 × 7,145,775.27
  4. Step 4: Simplify right side
    12,947,367.20x = 127,667,097,392,907.05
  5. Step 5: Solve for x
    x = 127,667,097,392,907.05/12,947,367.20
  6. Step 6: Final answer
    x = 9,860,467.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.