Home / 21,199,872.40-31,793,067.16-6,819,592.88

Finding the Fourth Proportional to 21,199,872.40, 31,793,067.16 and 6,819,592.88

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Solution

The fourth proportional to 21,199,872.40, 31,793,067.16 and 6,819,592.88 is: 10,227,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199,872.40 : 31,793,067.16 = 6,819,592.88 : x
  2. Step 2: Convert to fraction form
    21,199,872.40/31,793,067.16 = 6,819,592.88/x
  3. Step 3: Cross multiply
    21,199,872.40x = 31,793,067.16 × 6,819,592.88
  4. Step 4: Simplify right side
    21,199,872.40x = 216,815,774,437,697.81
  5. Step 5: Solve for x
    x = 216,815,774,437,697.81/21,199,872.40
  6. Step 6: Final answer
    x = 10,227,220.73

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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.