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Finding the Third Proportional to 66,213,690.50 and 142,546,897

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Solution

The third proportional to 66,213,690.50 and 142,546,897 is: 306,879,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213,690.50 : 142,546,897 = 142,546,897 : x
  2. Step 2: Convert to fraction form
    66,213,690.50/142,546,897 = 142,546,897/x
  3. Step 3: Cross multiply
    66,213,690.50x = 142,546,897 × 142,546,897
  4. Step 4: Simplify right side
    66,213,690.50x = 20,319,617,844,328,608
  5. Step 5: Solve for x
    x = 20,319,617,844,328,608/66,213,690.50
  6. Step 6: Final answer
    x = 306,879,403.50

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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.