Home / 12,205,067.36-18,313,575.21-4,918,223.93

Finding the Fourth Proportional to 12,205,067.36, 18,313,575.21 and 4,918,223.93

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Solution

The fourth proportional to 12,205,067.36, 18,313,575.21 and 4,918,223.93 is: 7,379,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205,067.36 : 18,313,575.21 = 4,918,223.93 : x
  2. Step 2: Convert to fraction form
    12,205,067.36/18,313,575.21 = 4,918,223.93/x
  3. Step 3: Cross multiply
    12,205,067.36x = 18,313,575.21 × 4,918,223.93
  4. Step 4: Simplify right side
    12,205,067.36x = 90,070,263,750,108.91
  5. Step 5: Solve for x
    x = 90,070,263,750,108.91/12,205,067.36
  6. Step 6: Final answer
    x = 7,379,743.28

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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.