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Finding the Fourth Proportional to 18,608,211.27, 27,914,067.14 and 5,477,637.74

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Solution

The fourth proportional to 18,608,211.27, 27,914,067.14 and 5,477,637.74 is: 8,216,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608,211.27 : 27,914,067.14 = 5,477,637.74 : x
  2. Step 2: Convert to fraction form
    18,608,211.27/27,914,067.14 = 5,477,637.74/x
  3. Step 3: Cross multiply
    18,608,211.27x = 27,914,067.14 × 5,477,637.74
  4. Step 4: Simplify right side
    18,608,211.27x = 152,903,147,475,999.34
  5. Step 5: Solve for x
    x = 152,903,147,475,999.34/18,608,211.27
  6. Step 6: Final answer
    x = 8,216,971.81

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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.