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Finding the Third Proportional to 289,128,938.50 and 440,469,280

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Solution

The third proportional to 289,128,938.50 and 440,469,280 is: 671,026,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,128,938.50 : 440,469,280 = 440,469,280 : x
  2. Step 2: Convert to fraction form
    289,128,938.50/440,469,280 = 440,469,280/x
  3. Step 3: Cross multiply
    289,128,938.50x = 440,469,280 × 440,469,280
  4. Step 4: Simplify right side
    289,128,938.50x = 194,013,186,623,718,400
  5. Step 5: Solve for x
    x = 194,013,186,623,718,400/289,128,938.50
  6. Step 6: Final answer
    x = 671,026,524.12

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.