Home / 12,408,824.80-18,628,400.40-7,021,223.20

Finding the Fourth Proportional to 12,408,824.80, 18,628,400.40 and 7,021,223.20

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Solution

The fourth proportional to 12,408,824.80, 18,628,400.40 and 7,021,223.20 is: 10,540,414.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,824.80 : 18,628,400.40 = 7,021,223.20 : x
  2. Step 2: Convert to fraction form
    12,408,824.80/18,628,400.40 = 7,021,223.20/x
  3. Step 3: Cross multiply
    12,408,824.80x = 18,628,400.40 × 7,021,223.20
  4. Step 4: Simplify right side
    12,408,824.80x = 130,794,157,067,369.27
  5. Step 5: Solve for x
    x = 130,794,157,067,369.27/12,408,824.80
  6. Step 6: Final answer
    x = 10,540,414.52

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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.