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Finding the Third Proportional to 3,155,040 and 6,907,128

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Solution

The third proportional to 3,155,040 and 6,907,128 is: 15,121,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155,040 : 6,907,128 = 6,907,128 : x
  2. Step 2: Convert to fraction form
    3,155,040/6,907,128 = 6,907,128/x
  3. Step 3: Cross multiply
    3,155,040x = 6,907,128 × 6,907,128
  4. Step 4: Simplify right side
    3,155,040x = 47,708,417,208,384
  5. Step 5: Solve for x
    x = 47,708,417,208,384/3,155,040
  6. Step 6: Final answer
    x = 15,121,335.14

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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.