Home / 517,227,545.79-713,680,031.79-305,568,836.91

Finding the Fourth Proportional to 517,227,545.79, 713,680,031.79 and 305,568,836.91

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Solution

The fourth proportional to 517,227,545.79, 713,680,031.79 and 305,568,836.91 is: 421,629,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,227,545.79 : 713,680,031.79 = 305,568,836.91 : x
  2. Step 2: Convert to fraction form
    517,227,545.79/713,680,031.79 = 305,568,836.91/x
  3. Step 3: Cross multiply
    517,227,545.79x = 713,680,031.79 × 305,568,836.91
  4. Step 4: Simplify right side
    517,227,545.79x = 218,078,377,239,962,144
  5. Step 5: Solve for x
    x = 218,078,377,239,962,144/517,227,545.79
  6. Step 6: Final answer
    x = 421,629,472.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.