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Finding the Third Proportional to 921,847,990.78 and 2,027,569,377.66

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Solution

The third proportional to 921,847,990.78 and 2,027,569,377.66 is: 4,459,561,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,847,990.78 : 2,027,569,377.66 = 2,027,569,377.66 : x
  2. Step 2: Convert to fraction form
    921,847,990.78/2,027,569,377.66 = 2,027,569,377.66/x
  3. Step 3: Cross multiply
    921,847,990.78x = 2,027,569,377.66 × 2,027,569,377.66
  4. Step 4: Simplify right side
    921,847,990.78x = 4,111,037,581,209,149,952
  5. Step 5: Solve for x
    x = 4,111,037,581,209,149,952/921,847,990.78
  6. Step 6: Final answer
    x = 4,459,561,253.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.