Home / 228,081,753.22-315,012,620.25-154,615,349.38

Finding the Fourth Proportional to 228,081,753.22, 315,012,620.25 and 154,615,349.38

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Solution

The fourth proportional to 228,081,753.22, 315,012,620.25 and 154,615,349.38 is: 213,545,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,081,753.22 : 315,012,620.25 = 154,615,349.38 : x
  2. Step 2: Convert to fraction form
    228,081,753.22/315,012,620.25 = 154,615,349.38/x
  3. Step 3: Cross multiply
    228,081,753.22x = 315,012,620.25 × 154,615,349.38
  4. Step 4: Simplify right side
    228,081,753.22x = 48,705,786,339,063,008
  5. Step 5: Solve for x
    x = 48,705,786,339,063,008/228,081,753.22
  6. Step 6: Final answer
    x = 213,545,299.66

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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.