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Finding the Fourth Proportional to 18,736,005.20, 25,855,729.08 and 10,476,366.08

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Solution

The fourth proportional to 18,736,005.20, 25,855,729.08 and 10,476,366.08 is: 14,457,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736,005.20 : 25,855,729.08 = 10,476,366.08 : x
  2. Step 2: Convert to fraction form
    18,736,005.20/25,855,729.08 = 10,476,366.08/x
  3. Step 3: Cross multiply
    18,736,005.20x = 25,855,729.08 × 10,476,366.08
  4. Step 4: Simplify right side
    18,736,005.20x = 270,874,083,107,381.59
  5. Step 5: Solve for x
    x = 270,874,083,107,381.59/18,736,005.20
  6. Step 6: Final answer
    x = 14,457,408.62

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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.