Home / 18,169,006-27,259,413.90-12,128,293.30

Finding the Fourth Proportional to 18,169,006, 27,259,413.90 and 12,128,293.30

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Solution

The fourth proportional to 18,169,006, 27,259,413.90 and 12,128,293.30 is: 18,196,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169,006 : 27,259,413.90 = 12,128,293.30 : x
  2. Step 2: Convert to fraction form
    18,169,006/27,259,413.90 = 12,128,293.30/x
  3. Step 3: Cross multiply
    18,169,006x = 27,259,413.90 × 12,128,293.30
  4. Step 4: Simplify right side
    18,169,006x = 330,610,166,965,296.88
  5. Step 5: Solve for x
    x = 330,610,166,965,296.88/18,169,006
  6. Step 6: Final answer
    x = 18,196,381.63

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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.