Home / 414,661,816.22-621,995,049.48-138,312,271.72

Finding the Fourth Proportional to 414,661,816.22, 621,995,049.48 and 138,312,271.72

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Solution

The fourth proportional to 414,661,816.22, 621,995,049.48 and 138,312,271.72 is: 207,469,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,661,816.22 : 621,995,049.48 = 138,312,271.72 : x
  2. Step 2: Convert to fraction form
    414,661,816.22/621,995,049.48 = 138,312,271.72/x
  3. Step 3: Cross multiply
    414,661,816.22x = 621,995,049.48 × 138,312,271.72
  4. Step 4: Simplify right side
    414,661,816.22x = 86,029,548,292,172,608
  5. Step 5: Solve for x
    x = 86,029,548,292,172,608/414,661,816.22
  6. Step 6: Final answer
    x = 207,469,183.14

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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.