Home / 455,553,789.75-680,345,480.25

Finding the Third Proportional to 455,553,789.75 and 680,345,480.25

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Solution

The third proportional to 455,553,789.75 and 680,345,480.25 is: 1,016,059,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,553,789.75 : 680,345,480.25 = 680,345,480.25 : x
  2. Step 2: Convert to fraction form
    455,553,789.75/680,345,480.25 = 680,345,480.25/x
  3. Step 3: Cross multiply
    455,553,789.75x = 680,345,480.25 × 680,345,480.25
  4. Step 4: Simplify right side
    455,553,789.75x = 462,869,972,496,603,136
  5. Step 5: Solve for x
    x = 462,869,972,496,603,136/455,553,789.75
  6. Step 6: Final answer
    x = 1,016,059,975.60

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Why These Related Problems?

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