Home / 20,536,893.32-28,340,718.90-11,831,868.68

Finding the Fourth Proportional to 20,536,893.32, 28,340,718.90 and 11,831,868.68

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Solution

The fourth proportional to 20,536,893.32, 28,340,718.90 and 11,831,868.68 is: 16,327,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536,893.32 : 28,340,718.90 = 11,831,868.68 : x
  2. Step 2: Convert to fraction form
    20,536,893.32/28,340,718.90 = 11,831,868.68/x
  3. Step 3: Cross multiply
    20,536,893.32x = 28,340,718.90 × 11,831,868.68
  4. Step 4: Simplify right side
    20,536,893.32x = 335,323,664,321,594
  5. Step 5: Solve for x
    x = 335,323,664,321,594/20,536,893.32
  6. Step 6: Final answer
    x = 16,327,867.08

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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.