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Finding the Third Proportional to 30,774,328 and 66,655,472

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Solution

The third proportional to 30,774,328 and 66,655,472 is: 144,372,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,774,328 : 66,655,472 = 66,655,472 : x
  2. Step 2: Convert to fraction form
    30,774,328/66,655,472 = 66,655,472/x
  3. Step 3: Cross multiply
    30,774,328x = 66,655,472 × 66,655,472
  4. Step 4: Simplify right side
    30,774,328x = 4,442,951,947,542,784
  5. Step 5: Solve for x
    x = 4,442,951,947,542,784/30,774,328
  6. Step 6: Final answer
    x = 144,372,021.63

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.