Home / 638,188,368.72-957,381,529.35-269,724,872.22

Finding the Fourth Proportional to 638,188,368.72, 957,381,529.35 and 269,724,872.22

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Solution

The fourth proportional to 638,188,368.72, 957,381,529.35 and 269,724,872.22 is: 404,629,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,188,368.72 : 957,381,529.35 = 269,724,872.22 : x
  2. Step 2: Convert to fraction form
    638,188,368.72/957,381,529.35 = 269,724,872.22/x
  3. Step 3: Cross multiply
    638,188,368.72x = 957,381,529.35 × 269,724,872.22
  4. Step 4: Simplify right side
    638,188,368.72x = 258,229,610,669,716,960
  5. Step 5: Solve for x
    x = 258,229,610,669,716,960/638,188,368.72
  6. Step 6: Final answer
    x = 404,629,139.81

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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.