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Finding the Third Proportional to 64,505,578 and 140,348,540

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Solution

The third proportional to 64,505,578 and 140,348,540 is: 305,364,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,505,578 : 140,348,540 = 140,348,540 : x
  2. Step 2: Convert to fraction form
    64,505,578/140,348,540 = 140,348,540/x
  3. Step 3: Cross multiply
    64,505,578x = 140,348,540 × 140,348,540
  4. Step 4: Simplify right side
    64,505,578x = 19,697,712,680,131,600
  5. Step 5: Solve for x
    x = 19,697,712,680,131,600/64,505,578
  6. Step 6: Final answer
    x = 305,364,486.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.