Home / 27,810,564.35-38,378,661.47-15,421,530.57

Finding the Fourth Proportional to 27,810,564.35, 38,378,661.47 and 15,421,530.57

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Solution

The fourth proportional to 27,810,564.35, 38,378,661.47 and 15,421,530.57 is: 21,281,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810,564.35 : 38,378,661.47 = 15,421,530.57 : x
  2. Step 2: Convert to fraction form
    27,810,564.35/38,378,661.47 = 15,421,530.57/x
  3. Step 3: Cross multiply
    27,810,564.35x = 38,378,661.47 × 15,421,530.57
  4. Step 4: Simplify right side
    27,810,564.35x = 591,857,700,903,392.75
  5. Step 5: Solve for x
    x = 591,857,700,903,392.75/27,810,564.35
  6. Step 6: Final answer
    x = 21,281,758.02

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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.