Home / 695,279,089.73-1,042,756,838.97-258,785,338.79

Finding the Fourth Proportional to 695,279,089.73, 1,042,756,838.97 and 258,785,338.79

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Solution

The fourth proportional to 695,279,089.73, 1,042,756,838.97 and 258,785,338.79 is: 388,117,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,279,089.73 : 1,042,756,838.97 = 258,785,338.79 : x
  2. Step 2: Convert to fraction form
    695,279,089.73/1,042,756,838.97 = 258,785,338.79/x
  3. Step 3: Cross multiply
    695,279,089.73x = 1,042,756,838.97 × 258,785,338.79
  4. Step 4: Simplify right side
    695,279,089.73x = 269,850,181,848,440,928
  5. Step 5: Solve for x
    x = 269,850,181,848,440,928/695,279,089.73
  6. Step 6: Final answer
    x = 388,117,787.28

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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.