Home / 18,960,340.40-28,392,396.60-10,431,040.40

Finding the Fourth Proportional to 18,960,340.40, 28,392,396.60 and 10,431,040.40

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Solution

The fourth proportional to 18,960,340.40, 28,392,396.60 and 10,431,040.40 is: 15,620,090.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960,340.40 : 28,392,396.60 = 10,431,040.40 : x
  2. Step 2: Convert to fraction form
    18,960,340.40/28,392,396.60 = 10,431,040.40/x
  3. Step 3: Cross multiply
    18,960,340.40x = 28,392,396.60 × 10,431,040.40
  4. Step 4: Simplify right side
    18,960,340.40x = 296,162,235,987,422.69
  5. Step 5: Solve for x
    x = 296,162,235,987,422.69/18,960,340.40
  6. Step 6: Final answer
    x = 15,620,090.66

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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.