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Finding the Third Proportional to 66,717,886.50 and 146,190,339

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Solution

The third proportional to 66,717,886.50 and 146,190,339 is: 320,328,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,717,886.50 : 146,190,339 = 146,190,339 : x
  2. Step 2: Convert to fraction form
    66,717,886.50/146,190,339 = 146,190,339/x
  3. Step 3: Cross multiply
    66,717,886.50x = 146,190,339 × 146,190,339
  4. Step 4: Simplify right side
    66,717,886.50x = 21,371,615,216,934,920
  5. Step 5: Solve for x
    x = 21,371,615,216,934,920/66,717,886.50
  6. Step 6: Final answer
    x = 320,328,120.96

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.