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Finding the Third Proportional to 808,618,234 and 1,242,136,515

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Solution

The third proportional to 808,618,234 and 1,242,136,515 is: 1,908,073,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,618,234 : 1,242,136,515 = 1,242,136,515 : x
  2. Step 2: Convert to fraction form
    808,618,234/1,242,136,515 = 1,242,136,515/x
  3. Step 3: Cross multiply
    808,618,234x = 1,242,136,515 × 1,242,136,515
  4. Step 4: Simplify right side
    808,618,234x = 1,542,903,121,896,345,344
  5. Step 5: Solve for x
    x = 1,542,903,121,896,345,344/808,618,234
  6. Step 6: Final answer
    x = 1,908,073,621.17

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.