Home / 21,562,464.97-29,755,794.91-13,189,218.67

Finding the Fourth Proportional to 21,562,464.97, 29,755,794.91 and 13,189,218.67

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Solution

The fourth proportional to 21,562,464.97, 29,755,794.91 and 13,189,218.67 is: 18,200,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562,464.97 : 29,755,794.91 = 13,189,218.67 : x
  2. Step 2: Convert to fraction form
    21,562,464.97/29,755,794.91 = 13,189,218.67/x
  3. Step 3: Cross multiply
    21,562,464.97x = 29,755,794.91 × 13,189,218.67
  4. Step 4: Simplify right side
    21,562,464.97x = 392,455,685,767,663
  5. Step 5: Solve for x
    x = 392,455,685,767,663/21,562,464.97
  6. Step 6: Final answer
    x = 18,200,872.97

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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.