Home / 21,514,356.78-29,689,812.81-11,856,564.78

Finding the Fourth Proportional to 21,514,356.78, 29,689,812.81 and 11,856,564.78

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Solution

The fourth proportional to 21,514,356.78, 29,689,812.81 and 11,856,564.78 is: 16,362,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514,356.78 : 29,689,812.81 = 11,856,564.78 : x
  2. Step 2: Convert to fraction form
    21,514,356.78/29,689,812.81 = 11,856,564.78/x
  3. Step 3: Cross multiply
    21,514,356.78x = 29,689,812.81 × 11,856,564.78
  4. Step 4: Simplify right side
    21,514,356.78x = 352,019,188,887,838.81
  5. Step 5: Solve for x
    x = 352,019,188,887,838.81/21,514,356.78
  6. Step 6: Final answer
    x = 16,362,059.65

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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.