Home / 987,217,242,399-1,390,219,420,171.50

Finding the Third Proportional to 987,217,242,399 and 1,390,219,420,171.50

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Solution

The third proportional to 987,217,242,399 and 1,390,219,420,171.50 is: 1,957,735,291,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,217,242,399 : 1,390,219,420,171.50 = 1,390,219,420,171.50 : x
  2. Step 2: Convert to fraction form
    987,217,242,399/1,390,219,420,171.50 = 1,390,219,420,171.50/x
  3. Step 3: Cross multiply
    987,217,242,399x = 1,390,219,420,171.50 × 1,390,219,420,171.50
  4. Step 4: Simplify right side
    987,217,242,399x = 1,932,710,036,221,981,714,546,688
  5. Step 5: Solve for x
    x = 1,932,710,036,221,981,714,546,688/987,217,242,399
  6. Step 6: Final answer
    x = 1,957,735,291,905.33

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.