Home / 21,801,494.55-30,085,784.30-11,878,790.79

Finding the Fourth Proportional to 21,801,494.55, 30,085,784.30 and 11,878,790.79

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Solution

The fourth proportional to 21,801,494.55, 30,085,784.30 and 11,878,790.79 is: 16,392,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801,494.55 : 30,085,784.30 = 11,878,790.79 : x
  2. Step 2: Convert to fraction form
    21,801,494.55/30,085,784.30 = 11,878,790.79/x
  3. Step 3: Cross multiply
    21,801,494.55x = 30,085,784.30 × 11,878,790.79
  4. Step 4: Simplify right side
    21,801,494.55x = 357,382,737,393,372.62
  5. Step 5: Solve for x
    x = 357,382,737,393,372.62/21,801,494.55
  6. Step 6: Final answer
    x = 16,392,579.72

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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.