Home / 20,603,017.09-28,432,181.69-12,347,874.37

Finding the Fourth Proportional to 20,603,017.09, 28,432,181.69 and 12,347,874.37

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Solution

The fourth proportional to 20,603,017.09, 28,432,181.69 and 12,347,874.37 is: 17,040,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603,017.09 : 28,432,181.69 = 12,347,874.37 : x
  2. Step 2: Convert to fraction form
    20,603,017.09/28,432,181.69 = 12,347,874.37/x
  3. Step 3: Cross multiply
    20,603,017.09x = 28,432,181.69 × 12,347,874.37
  4. Step 4: Simplify right side
    20,603,017.09x = 351,077,007,573,134.25
  5. Step 5: Solve for x
    x = 351,077,007,573,134.25/20,603,017.09
  6. Step 6: Final answer
    x = 17,040,077.48

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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.