Home / 21,164,159.88-29,212,756.38-13,823,115.30

Finding the Fourth Proportional to 21,164,159.88, 29,212,756.38 and 13,823,115.30

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Solution

The fourth proportional to 21,164,159.88, 29,212,756.38 and 13,823,115.30 is: 19,079,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164,159.88 : 29,212,756.38 = 13,823,115.30 : x
  2. Step 2: Convert to fraction form
    21,164,159.88/29,212,756.38 = 13,823,115.30/x
  3. Step 3: Cross multiply
    21,164,159.88x = 29,212,756.38 × 13,823,115.30
  4. Step 4: Simplify right side
    21,164,159.88x = 403,811,299,671,550.62
  5. Step 5: Solve for x
    x = 403,811,299,671,550.62/21,164,159.88
  6. Step 6: Final answer
    x = 19,079,958.85

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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.