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Finding the Third Proportional to 68,618,331 and 140,889,492

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Solution

The third proportional to 68,618,331 and 140,889,492 is: 289,279,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618,331 : 140,889,492 = 140,889,492 : x
  2. Step 2: Convert to fraction form
    68,618,331/140,889,492 = 140,889,492/x
  3. Step 3: Cross multiply
    68,618,331x = 140,889,492 × 140,889,492
  4. Step 4: Simplify right side
    68,618,331x = 19,849,848,956,018,064
  5. Step 5: Solve for x
    x = 19,849,848,956,018,064/68,618,331
  6. Step 6: Final answer
    x = 289,279,098.85

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.