Home / 258,450,308.61-356,662,534.73-140,978,198.85

Finding the Fourth Proportional to 258,450,308.61, 356,662,534.73 and 140,978,198.85

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Solution

The fourth proportional to 258,450,308.61, 356,662,534.73 and 140,978,198.85 is: 194,550,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450,308.61 : 356,662,534.73 = 140,978,198.85 : x
  2. Step 2: Convert to fraction form
    258,450,308.61/356,662,534.73 = 140,978,198.85/x
  3. Step 3: Cross multiply
    258,450,308.61x = 356,662,534.73 × 140,978,198.85
  4. Step 4: Simplify right side
    258,450,308.61x = 50,281,641,743,510,968
  5. Step 5: Solve for x
    x = 50,281,641,743,510,968/258,450,308.61
  6. Step 6: Final answer
    x = 194,550,519.26

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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.