Home / 12,687,367.20-19,030,885.92-3,102,828.80

Finding the Fourth Proportional to 12,687,367.20, 19,030,885.92 and 3,102,828.80

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Solution

The fourth proportional to 12,687,367.20, 19,030,885.92 and 3,102,828.80 is: 4,654,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,367.20 : 19,030,885.92 = 3,102,828.80 : x
  2. Step 2: Convert to fraction form
    12,687,367.20/19,030,885.92 = 3,102,828.80/x
  3. Step 3: Cross multiply
    12,687,367.20x = 19,030,885.92 × 3,102,828.80
  4. Step 4: Simplify right side
    12,687,367.20x = 59,049,580,922,090.50
  5. Step 5: Solve for x
    x = 59,049,580,922,090.50/12,687,367.20
  6. Step 6: Final answer
    x = 4,654,202.88

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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.