Home / 21,603,342.09-29,813,129.82-12,310,712.27

Finding the Fourth Proportional to 21,603,342.09, 29,813,129.82 and 12,310,712.27

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Solution

The fourth proportional to 21,603,342.09, 29,813,129.82 and 12,310,712.27 is: 16,989,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603,342.09 : 29,813,129.82 = 12,310,712.27 : x
  2. Step 2: Convert to fraction form
    21,603,342.09/29,813,129.82 = 12,310,712.27/x
  3. Step 3: Cross multiply
    21,603,342.09x = 29,813,129.82 × 12,310,712.27
  4. Step 4: Simplify right side
    21,603,342.09x = 367,020,863,082,176.88
  5. Step 5: Solve for x
    x = 367,020,863,082,176.88/21,603,342.09
  6. Step 6: Final answer
    x = 16,989,077.97

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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.