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Finding the Third Proportional to 4,316,899 and 9,287,009

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Solution

The third proportional to 4,316,899 and 9,287,009 is: 19,979,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,316,899 : 9,287,009 = 9,287,009 : x
  2. Step 2: Convert to fraction form
    4,316,899/9,287,009 = 9,287,009/x
  3. Step 3: Cross multiply
    4,316,899x = 9,287,009 × 9,287,009
  4. Step 4: Simplify right side
    4,316,899x = 86,248,536,166,081
  5. Step 5: Solve for x
    x = 86,248,536,166,081/4,316,899
  6. Step 6: Final answer
    x = 19,979,280.54

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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.