Home / 27,858,813.21-38,445,162.12-15,635,670.21

Finding the Fourth Proportional to 27,858,813.21, 38,445,162.12 and 15,635,670.21

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Solution

The fourth proportional to 27,858,813.21, 38,445,162.12 and 15,635,670.21 is: 21,577,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858,813.21 : 38,445,162.12 = 15,635,670.21 : x
  2. Step 2: Convert to fraction form
    27,858,813.21/38,445,162.12 = 15,635,670.21/x
  3. Step 3: Cross multiply
    27,858,813.21x = 38,445,162.12 × 15,635,670.21
  4. Step 4: Simplify right side
    27,858,813.21x = 601,115,876,078,304.50
  5. Step 5: Solve for x
    x = 601,115,876,078,304.50/27,858,813.21
  6. Step 6: Final answer
    x = 21,577,224.83

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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.