Home / 1,261,848,775.76-1,891,081,239.14-982,067,509.43

Finding the Fourth Proportional to 1,261,848,775.76, 1,891,081,239.14 and 982,067,509.43

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Solution

The fourth proportional to 1,261,848,775.76, 1,891,081,239.14 and 982,067,509.43 is: 1,471,784,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,848,775.76 : 1,891,081,239.14 = 982,067,509.43 : x
  2. Step 2: Convert to fraction form
    1,261,848,775.76/1,891,081,239.14 = 982,067,509.43/x
  3. Step 3: Cross multiply
    1,261,848,775.76x = 1,891,081,239.14 × 982,067,509.43
  4. Step 4: Simplify right side
    1,261,848,775.76x = 1,857,169,442,637,652,224
  5. Step 5: Solve for x
    x = 1,857,169,442,637,652,224/1,261,848,775.76
  6. Step 6: Final answer
    x = 1,471,784,478.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.