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Finding the Third Proportional to 9,721,605 and 21,273,162

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Solution

The third proportional to 9,721,605 and 21,273,162 is: 46,550,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721,605 : 21,273,162 = 21,273,162 : x
  2. Step 2: Convert to fraction form
    9,721,605/21,273,162 = 21,273,162/x
  3. Step 3: Cross multiply
    9,721,605x = 21,273,162 × 21,273,162
  4. Step 4: Simplify right side
    9,721,605x = 452,547,421,478,244
  5. Step 5: Solve for x
    x = 452,547,421,478,244/9,721,605
  6. Step 6: Final answer
    x = 46,550,690.08

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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.