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Finding the Third Proportional to 1,917,363,468 and 4,130,917,080

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Solution

The third proportional to 1,917,363,468 and 4,130,917,080 is: 8,899,969,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,363,468 : 4,130,917,080 = 4,130,917,080 : x
  2. Step 2: Convert to fraction form
    1,917,363,468/4,130,917,080 = 4,130,917,080/x
  3. Step 3: Cross multiply
    1,917,363,468x = 4,130,917,080 × 4,130,917,080
  4. Step 4: Simplify right side
    1,917,363,468x = 17,064,475,921,835,726,848
  5. Step 5: Solve for x
    x = 17,064,475,921,835,726,848/1,917,363,468
  6. Step 6: Final answer
    x = 8,899,969,258.12

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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.