Home / 1,561,765,296.98-2,155,275,764.57-856,917,091.62

Finding the Fourth Proportional to 1,561,765,296.98, 2,155,275,764.57 and 856,917,091.62

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Solution

The fourth proportional to 1,561,765,296.98, 2,155,275,764.57 and 856,917,091.62 is: 1,182,567,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,765,296.98 : 2,155,275,764.57 = 856,917,091.62 : x
  2. Step 2: Convert to fraction form
    1,561,765,296.98/2,155,275,764.57 = 856,917,091.62/x
  3. Step 3: Cross multiply
    1,561,765,296.98x = 2,155,275,764.57 × 856,917,091.62
  4. Step 4: Simplify right side
    1,561,765,296.98x = 1,846,892,639,816,538,624
  5. Step 5: Solve for x
    x = 1,846,892,639,816,538,624/1,561,765,296.98
  6. Step 6: Final answer
    x = 1,182,567,344.39

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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.