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Finding the Third Proportional to 9,985,909 and 21,510,008

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Solution

The third proportional to 9,985,909 and 21,510,008 is: 46,333,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985,909 : 21,510,008 = 21,510,008 : x
  2. Step 2: Convert to fraction form
    9,985,909/21,510,008 = 21,510,008/x
  3. Step 3: Cross multiply
    9,985,909x = 21,510,008 × 21,510,008
  4. Step 4: Simplify right side
    9,985,909x = 462,680,444,160,064
  5. Step 5: Solve for x
    x = 462,680,444,160,064/9,985,909
  6. Step 6: Final answer
    x = 46,333,332.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.