Home / 21,892,939.40-30,212,310.66-11,970,462.32

Finding the Fourth Proportional to 21,892,939.40, 30,212,310.66 and 11,970,462.32

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Solution

The fourth proportional to 21,892,939.40, 30,212,310.66 and 11,970,462.32 is: 16,519,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892,939.40 : 30,212,310.66 = 11,970,462.32 : x
  2. Step 2: Convert to fraction form
    21,892,939.40/30,212,310.66 = 11,970,462.32/x
  3. Step 3: Cross multiply
    21,892,939.40x = 30,212,310.66 × 11,970,462.32
  4. Step 4: Simplify right side
    21,892,939.40x = 361,655,326,273,009.69
  5. Step 5: Solve for x
    x = 361,655,326,273,009.69/21,892,939.40
  6. Step 6: Final answer
    x = 16,519,267.68

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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.