Home / 654,220,484.17-981,339,273.92-217,521,168.32

Finding the Fourth Proportional to 654,220,484.17, 981,339,273.92 and 217,521,168.32

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Solution

The fourth proportional to 654,220,484.17, 981,339,273.92 and 217,521,168.32 is: 326,284,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,220,484.17 : 981,339,273.92 = 217,521,168.32 : x
  2. Step 2: Convert to fraction form
    654,220,484.17/981,339,273.92 = 217,521,168.32/x
  3. Step 3: Cross multiply
    654,220,484.17x = 981,339,273.92 × 217,521,168.32
  4. Step 4: Simplify right side
    654,220,484.17x = 213,462,065,384,376,064
  5. Step 5: Solve for x
    x = 213,462,065,384,376,064/654,220,484.17
  6. Step 6: Final answer
    x = 326,284,594.49

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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.