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Finding the Third Proportional to 9,721,590 and 21,273,132

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Solution

The third proportional to 9,721,590 and 21,273,132 is: 46,550,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721,590 : 21,273,132 = 21,273,132 : x
  2. Step 2: Convert to fraction form
    9,721,590/21,273,132 = 21,273,132/x
  3. Step 3: Cross multiply
    9,721,590x = 21,273,132 × 21,273,132
  4. Step 4: Simplify right side
    9,721,590x = 452,546,145,089,424
  5. Step 5: Solve for x
    x = 452,546,145,089,424/9,721,590
  6. Step 6: Final answer
    x = 46,550,630.62

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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.