Home / 18,631,425.25-27,972,339.63-12,859,809.23

Finding the Fourth Proportional to 18,631,425.25, 27,972,339.63 and 12,859,809.23

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Solution

The fourth proportional to 18,631,425.25, 27,972,339.63 and 12,859,809.23 is: 19,307,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631,425.25 : 27,972,339.63 = 12,859,809.23 : x
  2. Step 2: Convert to fraction form
    18,631,425.25/27,972,339.63 = 12,859,809.23/x
  3. Step 3: Cross multiply
    18,631,425.25x = 27,972,339.63 × 12,859,809.23
  4. Step 4: Simplify right side
    18,631,425.25x = 359,718,951,154,408
  5. Step 5: Solve for x
    x = 359,718,951,154,408/18,631,425.25
  6. Step 6: Final answer
    x = 19,307,108.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.