Home / 21,580,383.80-29,780,582.16-11,790,617.72

Finding the Fourth Proportional to 21,580,383.80, 29,780,582.16 and 11,790,617.72

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Solution

The fourth proportional to 21,580,383.80, 29,780,582.16 and 11,790,617.72 is: 16,270,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,383.80 : 29,780,582.16 = 11,790,617.72 : x
  2. Step 2: Convert to fraction form
    21,580,383.80/29,780,582.16 = 11,790,617.72/x
  3. Step 3: Cross multiply
    21,580,383.80x = 29,780,582.16 × 11,790,617.72
  4. Step 4: Simplify right side
    21,580,383.80x = 351,131,459,727,611.88
  5. Step 5: Solve for x
    x = 351,131,459,727,611.88/21,580,383.80
  6. Step 6: Final answer
    x = 16,270,862.60

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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.