Home / 654,220,538.40-981,339,355.50-217,521,222.72

Finding the Fourth Proportional to 654,220,538.40, 981,339,355.50 and 217,521,222.72

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Solution

The fourth proportional to 654,220,538.40, 981,339,355.50 and 217,521,222.72 is: 326,284,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,220,538.40 : 981,339,355.50 = 217,521,222.72 : x
  2. Step 2: Convert to fraction form
    654,220,538.40/981,339,355.50 = 217,521,222.72/x
  3. Step 3: Cross multiply
    654,220,538.40x = 981,339,355.50 × 217,521,222.72
  4. Step 4: Simplify right side
    654,220,538.40x = 213,462,136,511,616,768
  5. Step 5: Solve for x
    x = 213,462,136,511,616,768/654,220,538.40
  6. Step 6: Final answer
    x = 326,284,676.16

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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.