Home / 20,874,012.32-28,801,536.72-20,185,893.92

Finding the Fourth Proportional to 20,874,012.32, 28,801,536.72 and 20,185,893.92

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Solution

The fourth proportional to 20,874,012.32, 28,801,536.72 and 20,185,893.92 is: 27,852,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874,012.32 : 28,801,536.72 = 20,185,893.92 : x
  2. Step 2: Convert to fraction form
    20,874,012.32/28,801,536.72 = 20,185,893.92/x
  3. Step 3: Cross multiply
    20,874,012.32x = 28,801,536.72 × 20,185,893.92
  4. Step 4: Simplify right side
    20,874,012.32x = 581,384,764,962,904.75
  5. Step 5: Solve for x
    x = 581,384,764,962,904.75/20,874,012.32
  6. Step 6: Final answer
    x = 27,852,084.98

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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.