Home / 638,188,386.48-957,381,556-269,724,890

Finding the Fourth Proportional to 638,188,386.48, 957,381,556 and 269,724,890

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Solution

The fourth proportional to 638,188,386.48, 957,381,556 and 269,724,890 is: 404,629,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,188,386.48 : 957,381,556 = 269,724,890 : x
  2. Step 2: Convert to fraction form
    638,188,386.48/957,381,556 = 269,724,890/x
  3. Step 3: Cross multiply
    638,188,386.48x = 957,381,556 × 269,724,890
  4. Step 4: Simplify right side
    638,188,386.48x = 258,229,634,880,128,832
  5. Step 5: Solve for x
    x = 258,229,634,880,128,832/638,188,386.48
  6. Step 6: Final answer
    x = 404,629,166.48

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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.