Home / 21,775,306.43-30,049,684.40-11,985,541.31

Finding the Fourth Proportional to 21,775,306.43, 30,049,684.40 and 11,985,541.31

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Solution

The fourth proportional to 21,775,306.43, 30,049,684.40 and 11,985,541.31 is: 16,539,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775,306.43 : 30,049,684.40 = 11,985,541.31 : x
  2. Step 2: Convert to fraction form
    21,775,306.43/30,049,684.40 = 11,985,541.31/x
  3. Step 3: Cross multiply
    21,775,306.43x = 30,049,684.40 × 11,985,541.31
  4. Step 4: Simplify right side
    21,775,306.43x = 360,161,733,608,378
  5. Step 5: Solve for x
    x = 360,161,733,608,378/21,775,306.43
  6. Step 6: Final answer
    x = 16,539,915.75

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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.