Home / 27,810,563.85-38,378,660.78-15,421,530.07

Finding the Fourth Proportional to 27,810,563.85, 38,378,660.78 and 15,421,530.07

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Solution

The fourth proportional to 27,810,563.85, 38,378,660.78 and 15,421,530.07 is: 21,281,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810,563.85 : 38,378,660.78 = 15,421,530.07 : x
  2. Step 2: Convert to fraction form
    27,810,563.85/38,378,660.78 = 15,421,530.07/x
  3. Step 3: Cross multiply
    27,810,563.85x = 38,378,660.78 × 15,421,530.07
  4. Step 4: Simplify right side
    27,810,563.85x = 591,857,671,142,932.38
  5. Step 5: Solve for x
    x = 591,857,671,142,932.38/27,810,563.85
  6. Step 6: Final answer
    x = 21,281,757.33

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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.