Home / 638,188,362.48-957,381,520-269,724,866

Finding the Fourth Proportional to 638,188,362.48, 957,381,520 and 269,724,866

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Solution

The fourth proportional to 638,188,362.48, 957,381,520 and 269,724,866 is: 404,629,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,188,362.48 : 957,381,520 = 269,724,866 : x
  2. Step 2: Convert to fraction form
    638,188,362.48/957,381,520 = 269,724,866/x
  3. Step 3: Cross multiply
    638,188,362.48x = 957,381,520 × 269,724,866
  4. Step 4: Simplify right side
    638,188,362.48x = 258,229,602,192,876,320
  5. Step 5: Solve for x
    x = 258,229,602,192,876,320/638,188,362.48
  6. Step 6: Final answer
    x = 404,629,130.48

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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.