Home / 128,278,257.81-192,397,945.01-34,912,504.94

Finding the Fourth Proportional to 128,278,257.81, 192,397,945.01 and 34,912,504.94

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Solution

The fourth proportional to 128,278,257.81, 192,397,945.01 and 34,912,504.94 is: 52,363,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,278,257.81 : 192,397,945.01 = 34,912,504.94 : x
  2. Step 2: Convert to fraction form
    128,278,257.81/192,397,945.01 = 34,912,504.94/x
  3. Step 3: Cross multiply
    128,278,257.81x = 192,397,945.01 × 34,912,504.94
  4. Step 4: Simplify right side
    128,278,257.81x = 6,717,094,204,470,921
  5. Step 5: Solve for x
    x = 6,717,094,204,470,921/128,278,257.81
  6. Step 6: Final answer
    x = 52,363,466.10

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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.