Home / 18,968,623.11-28,453,009.38-4,591,667.82

Finding the Fourth Proportional to 18,968,623.11, 28,453,009.38 and 4,591,667.82

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Solution

The fourth proportional to 18,968,623.11, 28,453,009.38 and 4,591,667.82 is: 6,887,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,623.11 : 28,453,009.38 = 4,591,667.82 : x
  2. Step 2: Convert to fraction form
    18,968,623.11/28,453,009.38 = 4,591,667.82/x
  3. Step 3: Cross multiply
    18,968,623.11x = 28,453,009.38 × 4,591,667.82
  4. Step 4: Simplify right side
    18,968,623.11x = 130,646,767,552,304.16
  5. Step 5: Solve for x
    x = 130,646,767,552,304.16/18,968,623.11
  6. Step 6: Final answer
    x = 6,887,519.82

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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.