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Finding the Third Proportional to 9,887,859.84 and 21,690,276.19

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Solution

The third proportional to 9,887,859.84 and 21,690,276.19 is: 47,580,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887,859.84 : 21,690,276.19 = 21,690,276.19 : x
  2. Step 2: Convert to fraction form
    9,887,859.84/21,690,276.19 = 21,690,276.19/x
  3. Step 3: Cross multiply
    9,887,859.84x = 21,690,276.19 × 21,690,276.19
  4. Step 4: Simplify right side
    9,887,859.84x = 470,468,081,090,029.56
  5. Step 5: Solve for x
    x = 470,468,081,090,029.56/9,887,859.84
  6. Step 6: Final answer
    x = 47,580,375.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.