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Finding the Third Proportional to 312,700,650 and 687,068,868

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Solution

The third proportional to 312,700,650 and 687,068,868 is: 1,509,634,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,700,650 : 687,068,868 = 687,068,868 : x
  2. Step 2: Convert to fraction form
    312,700,650/687,068,868 = 687,068,868/x
  3. Step 3: Cross multiply
    312,700,650x = 687,068,868 × 687,068,868
  4. Step 4: Simplify right side
    312,700,650x = 472,063,629,374,801,408
  5. Step 5: Solve for x
    x = 472,063,629,374,801,408/312,700,650
  6. Step 6: Final answer
    x = 1,509,634,308.00

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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.