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Finding the Third Proportional to 5,911,485 and 8,909,509

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Solution

The third proportional to 5,911,485 and 8,909,509 is: 13,427,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911,485 : 8,909,509 = 8,909,509 : x
  2. Step 2: Convert to fraction form
    5,911,485/8,909,509 = 8,909,509/x
  3. Step 3: Cross multiply
    5,911,485x = 8,909,509 × 8,909,509
  4. Step 4: Simplify right side
    5,911,485x = 79,379,350,621,081
  5. Step 5: Solve for x
    x = 79,379,350,621,081/5,911,485
  6. Step 6: Final answer
    x = 13,427,988.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.