Home / 18,745,929.17-25,858,070.59-12,380,822.95

Finding the Fourth Proportional to 18,745,929.17, 25,858,070.59 and 12,380,822.95

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Solution

The fourth proportional to 18,745,929.17, 25,858,070.59 and 12,380,822.95 is: 17,078,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745,929.17 : 25,858,070.59 = 12,380,822.95 : x
  2. Step 2: Convert to fraction form
    18,745,929.17/25,858,070.59 = 12,380,822.95/x
  3. Step 3: Cross multiply
    18,745,929.17x = 25,858,070.59 × 12,380,822.95
  4. Step 4: Simplify right side
    18,745,929.17x = 320,144,193,741,487.94
  5. Step 5: Solve for x
    x = 320,144,193,741,487.94/18,745,929.17
  6. Step 6: Final answer
    x = 17,078,064.83

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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.