Home / 21,115,183.38-29,139,402.42-11,947,826.16

Finding the Fourth Proportional to 21,115,183.38, 29,139,402.42 and 11,947,826.16

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Solution

The fourth proportional to 21,115,183.38, 29,139,402.42 and 11,947,826.16 is: 16,488,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,183.38 : 29,139,402.42 = 11,947,826.16 : x
  2. Step 2: Convert to fraction form
    21,115,183.38/29,139,402.42 = 11,947,826.16/x
  3. Step 3: Cross multiply
    21,115,183.38x = 29,139,402.42 × 11,947,826.16
  4. Step 4: Simplify right side
    21,115,183.38x = 348,152,514,520,443.31
  5. Step 5: Solve for x
    x = 348,152,514,520,443.31/21,115,183.38
  6. Step 6: Final answer
    x = 16,488,254.36

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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.