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Finding the Third Proportional to 4,991,430 and 10,739,440

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Solution

The third proportional to 4,991,430 and 10,739,440 is: 23,106,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,430 : 10,739,440 = 10,739,440 : x
  2. Step 2: Convert to fraction form
    4,991,430/10,739,440 = 10,739,440/x
  3. Step 3: Cross multiply
    4,991,430x = 10,739,440 × 10,739,440
  4. Step 4: Simplify right side
    4,991,430x = 115,335,571,513,600
  5. Step 5: Solve for x
    x = 115,335,571,513,600/4,991,430
  6. Step 6: Final answer
    x = 23,106,719.22

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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.