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Finding the Third Proportional to 319,453,484 and 490,719,668

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Solution

The third proportional to 319,453,484 and 490,719,668 is: 753,805,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,453,484 : 490,719,668 = 490,719,668 : x
  2. Step 2: Convert to fraction form
    319,453,484/490,719,668 = 490,719,668/x
  3. Step 3: Cross multiply
    319,453,484x = 490,719,668 × 490,719,668
  4. Step 4: Simplify right side
    319,453,484x = 240,805,792,562,030,208
  5. Step 5: Solve for x
    x = 240,805,792,562,030,208/319,453,484
  6. Step 6: Final answer
    x = 753,805,497.90

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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.