Home / 289,322,215.75-399,264,813.26-158,950,421.83

Finding the Fourth Proportional to 289,322,215.75, 399,264,813.26 and 158,950,421.83

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Solution

The fourth proportional to 289,322,215.75, 399,264,813.26 and 158,950,421.83 is: 219,351,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,322,215.75 : 399,264,813.26 = 158,950,421.83 : x
  2. Step 2: Convert to fraction form
    289,322,215.75/399,264,813.26 = 158,950,421.83/x
  3. Step 3: Cross multiply
    289,322,215.75x = 399,264,813.26 × 158,950,421.83
  4. Step 4: Simplify right side
    289,322,215.75x = 63,463,310,489,553,184
  5. Step 5: Solve for x
    x = 63,463,310,489,553,184/289,322,215.75
  6. Step 6: Final answer
    x = 219,351,667.57

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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.