Home / 638,188,349.74-957,381,500.95-269,724,853.28

Finding the Fourth Proportional to 638,188,349.74, 957,381,500.95 and 269,724,853.28

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Solution

The fourth proportional to 638,188,349.74, 957,381,500.95 and 269,724,853.28 is: 404,629,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,188,349.74 : 957,381,500.95 = 269,724,853.28 : x
  2. Step 2: Convert to fraction form
    638,188,349.74/957,381,500.95 = 269,724,853.28/x
  3. Step 3: Cross multiply
    638,188,349.74x = 957,381,500.95 × 269,724,853.28
  4. Step 4: Simplify right side
    638,188,349.74x = 258,229,584,878,444,096
  5. Step 5: Solve for x
    x = 258,229,584,878,444,096/638,188,349.74
  6. Step 6: Final answer
    x = 404,629,111.43

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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.