Home / 654,220,512.18-981,339,316.07-217,521,196.47

Finding the Fourth Proportional to 654,220,512.18, 981,339,316.07 and 217,521,196.47

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Solution

The fourth proportional to 654,220,512.18, 981,339,316.07 and 217,521,196.47 is: 326,284,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,220,512.18 : 981,339,316.07 = 217,521,196.47 : x
  2. Step 2: Convert to fraction form
    654,220,512.18/981,339,316.07 = 217,521,196.47/x
  3. Step 3: Cross multiply
    654,220,512.18x = 981,339,316.07 × 217,521,196.47
  4. Step 4: Simplify right side
    654,220,512.18x = 213,462,102,173,510,304
  5. Step 5: Solve for x
    x = 213,462,102,173,510,304/654,220,512.18
  6. Step 6: Final answer
    x = 326,284,636.75

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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.