Home / 20,819,461.20-31,230,416.88-8,040,032.88

Finding the Fourth Proportional to 20,819,461.20, 31,230,416.88 and 8,040,032.88

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Solution

The fourth proportional to 20,819,461.20, 31,230,416.88 and 8,040,032.88 is: 12,060,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,461.20 : 31,230,416.88 = 8,040,032.88 : x
  2. Step 2: Convert to fraction form
    20,819,461.20/31,230,416.88 = 8,040,032.88/x
  3. Step 3: Cross multiply
    20,819,461.20x = 31,230,416.88 × 8,040,032.88
  4. Step 4: Simplify right side
    20,819,461.20x = 251,093,578,571,307
  5. Step 5: Solve for x
    x = 251,093,578,571,307/20,819,461.20
  6. Step 6: Final answer
    x = 12,060,522.42

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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.