Home / 20,919,335.76-31,361,029.74-7,270,709.04

Finding the Fourth Proportional to 20,919,335.76, 31,361,029.74 and 7,270,709.04

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Solution

The fourth proportional to 20,919,335.76, 31,361,029.74 and 7,270,709.04 is: 10,899,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,335.76 : 31,361,029.74 = 7,270,709.04 : x
  2. Step 2: Convert to fraction form
    20,919,335.76/31,361,029.74 = 7,270,709.04/x
  3. Step 3: Cross multiply
    20,919,335.76x = 31,361,029.74 × 7,270,709.04
  4. Step 4: Simplify right side
    20,919,335.76x = 228,016,922,434,326.84
  5. Step 5: Solve for x
    x = 228,016,922,434,326.84/20,919,335.76
  6. Step 6: Final answer
    x = 10,899,816.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.