Home / 148,690,310.75-309,599,938.50

Finding the Third Proportional to 148,690,310.75 and 309,599,938.50

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Solution

The third proportional to 148,690,310.75 and 309,599,938.50 is: 644,642,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,690,310.75 : 309,599,938.50 = 309,599,938.50 : x
  2. Step 2: Convert to fraction form
    148,690,310.75/309,599,938.50 = 309,599,938.50/x
  3. Step 3: Cross multiply
    148,690,310.75x = 309,599,938.50 × 309,599,938.50
  4. Step 4: Simplify right side
    148,690,310.75x = 95,852,121,919,203,776
  5. Step 5: Solve for x
    x = 95,852,121,919,203,776/148,690,310.75
  6. Step 6: Final answer
    x = 644,642,690.14

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.