Home / 128,278,254.69-192,397,940.32-34,912,501.81

Finding the Fourth Proportional to 128,278,254.69, 192,397,940.32 and 34,912,501.81

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Solution

The fourth proportional to 128,278,254.69, 192,397,940.32 and 34,912,501.81 is: 52,363,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,278,254.69 : 192,397,940.32 = 34,912,501.81 : x
  2. Step 2: Convert to fraction form
    128,278,254.69/192,397,940.32 = 34,912,501.81/x
  3. Step 3: Cross multiply
    128,278,254.69x = 192,397,940.32 × 34,912,501.81
  4. Step 4: Simplify right side
    128,278,254.69x = 6,717,093,440,454,615
  5. Step 5: Solve for x
    x = 6,717,093,440,454,615/128,278,254.69
  6. Step 6: Final answer
    x = 52,363,461.42

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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.