Home / 1,247,460,654,378.20-1,721,505,810,808.50-691,275,071,714.39

Finding the Fourth Proportional to 1,247,460,654,378.20, 1,721,505,810,808.50 and 691,275,071,714.39

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Solution

The fourth proportional to 1,247,460,654,378.20, 1,721,505,810,808.50 and 691,275,071,714.39 is: 953,965,200,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,460,654,378.20 : 1,721,505,810,808.50 = 691,275,071,714.39 : x
  2. Step 2: Convert to fraction form
    1,247,460,654,378.20/1,721,505,810,808.50 = 691,275,071,714.39/x
  3. Step 3: Cross multiply
    1,247,460,654,378.20x = 1,721,505,810,808.50 × 691,275,071,714.39
  4. Step 4: Simplify right side
    1,247,460,654,378.20x = 1,190,034,052,823,384,969,969,664
  5. Step 5: Solve for x
    x = 1,190,034,052,823,384,969,969,664/1,247,460,654,378.20
  6. Step 6: Final answer
    x = 953,965,200,142.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.