Home / 21,613,186.80-29,826,433.08-11,823,420.78

Finding the Fourth Proportional to 21,613,186.80, 29,826,433.08 and 11,823,420.78

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Solution

The fourth proportional to 21,613,186.80, 29,826,433.08 and 11,823,420.78 is: 16,316,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613,186.80 : 29,826,433.08 = 11,823,420.78 : x
  2. Step 2: Convert to fraction form
    21,613,186.80/29,826,433.08 = 11,823,420.78/x
  3. Step 3: Cross multiply
    21,613,186.80x = 29,826,433.08 × 11,823,420.78
  4. Step 4: Simplify right side
    21,613,186.80x = 352,650,468,671,351.38
  5. Step 5: Solve for x
    x = 352,650,468,671,351.38/21,613,186.80
  6. Step 6: Final answer
    x = 16,316,449.39

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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.