Home / 18,687,737.70-28,031,606.55-7,328,556.90

Finding the Fourth Proportional to 18,687,737.70, 28,031,606.55 and 7,328,556.90

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Solution

The fourth proportional to 18,687,737.70, 28,031,606.55 and 7,328,556.90 is: 10,992,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,737.70 : 28,031,606.55 = 7,328,556.90 : x
  2. Step 2: Convert to fraction form
    18,687,737.70/28,031,606.55 = 7,328,556.90/x
  3. Step 3: Cross multiply
    18,687,737.70x = 28,031,606.55 × 7,328,556.90
  4. Step 4: Simplify right side
    18,687,737.70x = 205,431,223,600,087.72
  5. Step 5: Solve for x
    x = 205,431,223,600,087.72/18,687,737.70
  6. Step 6: Final answer
    x = 10,992,835.35

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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.