Home / 451,796,812.50-677,981,902.05-193,013,979.78

Finding the Fourth Proportional to 451,796,812.50, 677,981,902.05 and 193,013,979.78

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Solution

The fourth proportional to 451,796,812.50, 677,981,902.05 and 193,013,979.78 is: 289,643,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,796,812.50 : 677,981,902.05 = 193,013,979.78 : x
  2. Step 2: Convert to fraction form
    451,796,812.50/677,981,902.05 = 193,013,979.78/x
  3. Step 3: Cross multiply
    451,796,812.50x = 677,981,902.05 × 193,013,979.78
  4. Step 4: Simplify right side
    451,796,812.50x = 130,859,985,133,484,640
  5. Step 5: Solve for x
    x = 130,859,985,133,484,640/451,796,812.50
  6. Step 6: Final answer
    x = 289,643,444.83

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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.