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Finding the Third Proportional to 30,786,439.50 and 66,931,452

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Solution

The third proportional to 30,786,439.50 and 66,931,452 is: 145,512,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,786,439.50 : 66,931,452 = 66,931,452 : x
  2. Step 2: Convert to fraction form
    30,786,439.50/66,931,452 = 66,931,452/x
  3. Step 3: Cross multiply
    30,786,439.50x = 66,931,452 × 66,931,452
  4. Step 4: Simplify right side
    30,786,439.50x = 4,479,819,266,828,304
  5. Step 5: Solve for x
    x = 4,479,819,266,828,304/30,786,439.50
  6. Step 6: Final answer
    x = 145,512,743.26

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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.