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Finding the Third Proportional to 1,279,799,961 and 1,911,313,521

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Solution

The third proportional to 1,279,799,961 and 1,911,313,521 is: 2,854,445,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,799,961 : 1,911,313,521 = 1,911,313,521 : x
  2. Step 2: Convert to fraction form
    1,279,799,961/1,911,313,521 = 1,911,313,521/x
  3. Step 3: Cross multiply
    1,279,799,961x = 1,911,313,521 × 1,911,313,521
  4. Step 4: Simplify right side
    1,279,799,961x = 3,653,119,375,557,417,472
  5. Step 5: Solve for x
    x = 3,653,119,375,557,417,472/1,279,799,961
  6. Step 6: Final answer
    x = 2,854,445,606.25

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.