Home / 638,188,347.49-957,381,497.56-269,724,851.03

Finding the Fourth Proportional to 638,188,347.49, 957,381,497.56 and 269,724,851.03

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Solution

The fourth proportional to 638,188,347.49, 957,381,497.56 and 269,724,851.03 is: 404,629,108.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,188,347.49 : 957,381,497.56 = 269,724,851.03 : x
  2. Step 2: Convert to fraction form
    638,188,347.49/957,381,497.56 = 269,724,851.03/x
  3. Step 3: Cross multiply
    638,188,347.49x = 957,381,497.56 × 269,724,851.03
  4. Step 4: Simplify right side
    638,188,347.49x = 258,229,581,810,979,936
  5. Step 5: Solve for x
    x = 258,229,581,810,979,936/638,188,347.49
  6. Step 6: Final answer
    x = 404,629,108.05

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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.