Home / 21,687,137.78-29,926,344.06-12,392,863.46

Finding the Fourth Proportional to 21,687,137.78, 29,926,344.06 and 12,392,863.46

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Solution

The fourth proportional to 21,687,137.78, 29,926,344.06 and 12,392,863.46 is: 17,101,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,137.78 : 29,926,344.06 = 12,392,863.46 : x
  2. Step 2: Convert to fraction form
    21,687,137.78/29,926,344.06 = 12,392,863.46/x
  3. Step 3: Cross multiply
    21,687,137.78x = 29,926,344.06 × 12,392,863.46
  4. Step 4: Simplify right side
    21,687,137.78x = 370,873,095,642,930.31
  5. Step 5: Solve for x
    x = 370,873,095,642,930.31/21,687,137.78
  6. Step 6: Final answer
    x = 17,101,062.36

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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.