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Finding the Third Proportional to 502,376,048 and 678,541,215

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Solution

The third proportional to 502,376,048 and 678,541,215 is: 916,481,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,376,048 : 678,541,215 = 678,541,215 : x
  2. Step 2: Convert to fraction form
    502,376,048/678,541,215 = 678,541,215/x
  3. Step 3: Cross multiply
    502,376,048x = 678,541,215 × 678,541,215
  4. Step 4: Simplify right side
    502,376,048x = 460,418,180,453,676,224
  5. Step 5: Solve for x
    x = 460,418,180,453,676,224/502,376,048
  6. Step 6: Final answer
    x = 916,481,154.48

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.