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Finding the Third Proportional to 389,797,690.50 and 866,747,988

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Solution

The third proportional to 389,797,690.50 and 866,747,988 is: 1,927,287,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,797,690.50 : 866,747,988 = 866,747,988 : x
  2. Step 2: Convert to fraction form
    389,797,690.50/866,747,988 = 866,747,988/x
  3. Step 3: Cross multiply
    389,797,690.50x = 866,747,988 × 866,747,988
  4. Step 4: Simplify right side
    389,797,690.50x = 751,252,074,702,048,128
  5. Step 5: Solve for x
    x = 751,252,074,702,048,128/389,797,690.50
  6. Step 6: Final answer
    x = 1,927,287,136.41

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.