Home / 288,861,717.32-398,629,169.91-165,105,051.68

Finding the Fourth Proportional to 288,861,717.32, 398,629,169.91 and 165,105,051.68

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Solution

The fourth proportional to 288,861,717.32, 398,629,169.91 and 165,105,051.68 is: 227,844,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,717.32 : 398,629,169.91 = 165,105,051.68 : x
  2. Step 2: Convert to fraction form
    288,861,717.32/398,629,169.91 = 165,105,051.68/x
  3. Step 3: Cross multiply
    288,861,717.32x = 398,629,169.91 × 165,105,051.68
  4. Step 4: Simplify right side
    288,861,717.32x = 65,815,689,699,146,056
  5. Step 5: Solve for x
    x = 65,815,689,699,146,056/288,861,717.32
  6. Step 6: Final answer
    x = 227,844,971.32

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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.