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Finding the Third Proportional to 7,887,802.78 and 11,800,171.13

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Solution

The third proportional to 7,887,802.78 and 11,800,171.13 is: 17,653,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887,802.78 : 11,800,171.13 = 11,800,171.13 : x
  2. Step 2: Convert to fraction form
    7,887,802.78/11,800,171.13 = 11,800,171.13/x
  3. Step 3: Cross multiply
    7,887,802.78x = 11,800,171.13 × 11,800,171.13
  4. Step 4: Simplify right side
    7,887,802.78x = 139,244,038,579,283.77
  5. Step 5: Solve for x
    x = 139,244,038,579,283.77/7,887,802.78
  6. Step 6: Final answer
    x = 17,653,083.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.