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Finding the Third Proportional to 8,655,963.75 and 13,456,459.13

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Solution

The third proportional to 8,655,963.75 and 13,456,459.13 is: 20,919,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655,963.75 : 13,456,459.13 = 13,456,459.13 : x
  2. Step 2: Convert to fraction form
    8,655,963.75/13,456,459.13 = 13,456,459.13/x
  3. Step 3: Cross multiply
    8,655,963.75x = 13,456,459.13 × 13,456,459.13
  4. Step 4: Simplify right side
    8,655,963.75x = 181,076,292,182,795.75
  5. Step 5: Solve for x
    x = 181,076,292,182,795.75/8,655,963.75
  6. Step 6: Final answer
    x = 20,919,252.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.