Home / 12,942,479.43-17,860,995.45-7,141,634.73

Finding the Fourth Proportional to 12,942,479.43, 17,860,995.45 and 7,141,634.73

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Solution

The fourth proportional to 12,942,479.43, 17,860,995.45 and 7,141,634.73 is: 9,855,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,479.43 : 17,860,995.45 = 7,141,634.73 : x
  2. Step 2: Convert to fraction form
    12,942,479.43/17,860,995.45 = 7,141,634.73/x
  3. Step 3: Cross multiply
    12,942,479.43x = 17,860,995.45 × 7,141,634.73
  4. Step 4: Simplify right side
    12,942,479.43x = 127,556,705,418,091.98
  5. Step 5: Solve for x
    x = 127,556,705,418,091.98/12,942,479.43
  6. Step 6: Final answer
    x = 9,855,662.21

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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.