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Finding the Third Proportional to 128,954,034 and 283,241,428

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Solution

The third proportional to 128,954,034 and 283,241,428 is: 622,126,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,954,034 : 283,241,428 = 283,241,428 : x
  2. Step 2: Convert to fraction form
    128,954,034/283,241,428 = 283,241,428/x
  3. Step 3: Cross multiply
    128,954,034x = 283,241,428 × 283,241,428
  4. Step 4: Simplify right side
    128,954,034x = 80,225,706,535,479,184
  5. Step 5: Solve for x
    x = 80,225,706,535,479,184/128,954,034
  6. Step 6: Final answer
    x = 622,126,381.37

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.