Home / 21,514,357.78-29,689,814.19-11,856,565.78

Finding the Fourth Proportional to 21,514,357.78, 29,689,814.19 and 11,856,565.78

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Solution

The fourth proportional to 21,514,357.78, 29,689,814.19 and 11,856,565.78 is: 16,362,061.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514,357.78 : 29,689,814.19 = 11,856,565.78 : x
  2. Step 2: Convert to fraction form
    21,514,357.78/29,689,814.19 = 11,856,565.78/x
  3. Step 3: Cross multiply
    21,514,357.78x = 29,689,814.19 × 11,856,565.78
  4. Step 4: Simplify right side
    21,514,357.78x = 352,019,234,939,712.44
  5. Step 5: Solve for x
    x = 352,019,234,939,712.44/21,514,357.78
  6. Step 6: Final answer
    x = 16,362,061.03

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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.