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Finding the Third Proportional to 30,856,065 and 66,355,860

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Solution

The third proportional to 30,856,065 and 66,355,860 is: 142,698,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856,065 : 66,355,860 = 66,355,860 : x
  2. Step 2: Convert to fraction form
    30,856,065/66,355,860 = 66,355,860/x
  3. Step 3: Cross multiply
    30,856,065x = 66,355,860 × 66,355,860
  4. Step 4: Simplify right side
    30,856,065x = 4,403,100,156,339,600
  5. Step 5: Solve for x
    x = 4,403,100,156,339,600/30,856,065
  6. Step 6: Final answer
    x = 142,698,045.14

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.