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Finding the Third Proportional to 57,748,190 and 128,407,942

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Solution

The third proportional to 57,748,190 and 128,407,942 is: 285,525,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,748,190 : 128,407,942 = 128,407,942 : x
  2. Step 2: Convert to fraction form
    57,748,190/128,407,942 = 128,407,942/x
  3. Step 3: Cross multiply
    57,748,190x = 128,407,942 × 128,407,942
  4. Step 4: Simplify right side
    57,748,190x = 16,488,599,568,675,364
  5. Step 5: Solve for x
    x = 16,488,599,568,675,364/57,748,190
  6. Step 6: Final answer
    x = 285,525,824.60

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.