Home / 1,217,217,576.15-1,825,902,103.68-440,869,962.78

Finding the Fourth Proportional to 1,217,217,576.15, 1,825,902,103.68 and 440,869,962.78

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Solution

The fourth proportional to 1,217,217,576.15, 1,825,902,103.68 and 440,869,962.78 is: 661,332,376.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,217,576.15 : 1,825,902,103.68 = 440,869,962.78 : x
  2. Step 2: Convert to fraction form
    1,217,217,576.15/1,825,902,103.68 = 440,869,962.78/x
  3. Step 3: Cross multiply
    1,217,217,576.15x = 1,825,902,103.68 × 440,869,962.78
  4. Step 4: Simplify right side
    1,217,217,576.15x = 804,985,392,489,325,312
  5. Step 5: Solve for x
    x = 804,985,392,489,325,312/1,217,217,576.15
  6. Step 6: Final answer
    x = 661,332,376.61

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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.