Home / 7,189,727.40-9,921,800.16-4,289,240.52

Finding the Fourth Proportional to 7,189,727.40, 9,921,800.16 and 4,289,240.52

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Solution

The fourth proportional to 7,189,727.40, 9,921,800.16 and 4,289,240.52 is: 5,919,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,727.40 : 9,921,800.16 = 4,289,240.52 : x
  2. Step 2: Convert to fraction form
    7,189,727.40/9,921,800.16 = 4,289,240.52/x
  3. Step 3: Cross multiply
    7,189,727.40x = 9,921,800.16 × 4,289,240.52
  4. Step 4: Simplify right side
    7,189,727.40x = 42,556,987,277,614.48
  5. Step 5: Solve for x
    x = 42,556,987,277,614.48/7,189,727.40
  6. Step 6: Final answer
    x = 5,919,137.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.