Home / 289,568,477.43-399,601,659.92-157,401,610.32

Finding the Fourth Proportional to 289,568,477.43, 399,601,659.92 and 157,401,610.32

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Solution

The fourth proportional to 289,568,477.43, 399,601,659.92 and 157,401,610.32 is: 217,212,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,568,477.43 : 399,601,659.92 = 157,401,610.32 : x
  2. Step 2: Convert to fraction form
    289,568,477.43/399,601,659.92 = 157,401,610.32/x
  3. Step 3: Cross multiply
    289,568,477.43x = 399,601,659.92 × 157,401,610.32
  4. Step 4: Simplify right side
    289,568,477.43x = 62,897,944,757,953,000
  5. Step 5: Solve for x
    x = 62,897,944,757,953,000/289,568,477.43
  6. Step 6: Final answer
    x = 217,212,679.07

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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.