Home / 12,947,367.88-17,866,095.60-7,145,775.96

Finding the Fourth Proportional to 12,947,367.88, 17,866,095.60 and 7,145,775.96

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Solution

The fourth proportional to 12,947,367.88, 17,866,095.60 and 7,145,775.96 is: 9,860,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,367.88 : 17,866,095.60 = 7,145,775.96 : x
  2. Step 2: Convert to fraction form
    12,947,367.88/17,866,095.60 = 7,145,775.96/x
  3. Step 3: Cross multiply
    12,947,367.88x = 17,866,095.60 × 7,145,775.96
  4. Step 4: Simplify right side
    12,947,367.88x = 127,667,116,397,340.58
  5. Step 5: Solve for x
    x = 127,667,116,397,340.58/12,947,367.88
  6. Step 6: Final answer
    x = 9,860,468.75

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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.