Home / 7,189,820,497.92-9,921,092,976.72-3,974,296,118.88

Finding the Fourth Proportional to 7,189,820,497.92, 9,921,092,976.72 and 3,974,296,118.88

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Solution

The fourth proportional to 7,189,820,497.92, 9,921,092,976.72 and 3,974,296,118.88 is: 5,484,053,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,820,497.92 : 9,921,092,976.72 = 3,974,296,118.88 : x
  2. Step 2: Convert to fraction form
    7,189,820,497.92/9,921,092,976.72 = 3,974,296,118.88/x
  3. Step 3: Cross multiply
    7,189,820,497.92x = 9,921,092,976.72 × 3,974,296,118.88
  4. Step 4: Simplify right side
    7,189,820,497.92x = 39,429,361,312,425,918,464
  5. Step 5: Solve for x
    x = 39,429,361,312,425,918,464/7,189,820,497.92
  6. Step 6: Final answer
    x = 5,484,053,645.54

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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.