Home / 21,911,107.14-30,227,820.84-13,204,331.82

Finding the Fourth Proportional to 21,911,107.14, 30,227,820.84 and 13,204,331.82

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Solution

The fourth proportional to 21,911,107.14, 30,227,820.84 and 13,204,331.82 is: 18,216,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911,107.14 : 30,227,820.84 = 13,204,331.82 : x
  2. Step 2: Convert to fraction form
    21,911,107.14/30,227,820.84 = 13,204,331.82/x
  3. Step 3: Cross multiply
    21,911,107.14x = 30,227,820.84 × 13,204,331.82
  4. Step 4: Simplify right side
    21,911,107.14x = 399,138,176,566,871.12
  5. Step 5: Solve for x
    x = 399,138,176,566,871.12/21,911,107.14
  6. Step 6: Final answer
    x = 18,216,248.68

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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.