Home / 21,682,205.64-29,921,486.92-11,892,730.32

Finding the Fourth Proportional to 21,682,205.64, 29,921,486.92 and 11,892,730.32

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Solution

The fourth proportional to 21,682,205.64, 29,921,486.92 and 11,892,730.32 is: 16,411,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682,205.64 : 29,921,486.92 = 11,892,730.32 : x
  2. Step 2: Convert to fraction form
    21,682,205.64/29,921,486.92 = 11,892,730.32/x
  3. Step 3: Cross multiply
    21,682,205.64x = 29,921,486.92 × 11,892,730.32
  4. Step 4: Simplify right side
    21,682,205.64x = 355,848,174,563,360
  5. Step 5: Solve for x
    x = 355,848,174,563,360/21,682,205.64
  6. Step 6: Final answer
    x = 16,411,991.50

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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.