Home / 661,853,999.70-992,780,999.55-225,647,226.90

Finding the Fourth Proportional to 661,853,999.70, 992,780,999.55 and 225,647,226.90

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Solution

The fourth proportional to 661,853,999.70, 992,780,999.55 and 225,647,226.90 is: 338,470,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,853,999.70 : 992,780,999.55 = 225,647,226.90 : x
  2. Step 2: Convert to fraction form
    661,853,999.70/992,780,999.55 = 225,647,226.90/x
  3. Step 3: Cross multiply
    661,853,999.70x = 992,780,999.55 × 225,647,226.90
  4. Step 4: Simplify right side
    661,853,999.70x = 224,018,279,467,467,648
  5. Step 5: Solve for x
    x = 224,018,279,467,467,648/661,853,999.70
  6. Step 6: Final answer
    x = 338,470,840.35

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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.