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Finding the Third Proportional to 861,317,461.50 and 1,889,387,842.50

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Solution

The third proportional to 861,317,461.50 and 1,889,387,842.50 is: 4,144,565,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,317,461.50 : 1,889,387,842.50 = 1,889,387,842.50 : x
  2. Step 2: Convert to fraction form
    861,317,461.50/1,889,387,842.50 = 1,889,387,842.50/x
  3. Step 3: Cross multiply
    861,317,461.50x = 1,889,387,842.50 × 1,889,387,842.50
  4. Step 4: Simplify right side
    861,317,461.50x = 3,569,786,419,386,804,736
  5. Step 5: Solve for x
    x = 3,569,786,419,386,804,736/861,317,461.50
  6. Step 6: Final answer
    x = 4,144,565,249.11

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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.