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Finding the Third Proportional to 30,786,324.75 and 66,931,204.50

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Solution

The third proportional to 30,786,324.75 and 66,931,204.50 is: 145,512,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,786,324.75 : 66,931,204.50 = 66,931,204.50 : x
  2. Step 2: Convert to fraction form
    30,786,324.75/66,931,204.50 = 66,931,204.50/x
  3. Step 3: Cross multiply
    30,786,324.75x = 66,931,204.50 × 66,931,204.50
  4. Step 4: Simplify right side
    30,786,324.75x = 4,479,786,135,820,820
  5. Step 5: Solve for x
    x = 4,479,786,135,820,820/30,786,324.75
  6. Step 6: Final answer
    x = 145,512,209.47

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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.