Home / 258,677,940,486.68-388,030,613,934.38-79,726,838,237.80

Finding the Fourth Proportional to 258,677,940,486.68, 388,030,613,934.38 and 79,726,838,237.80

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Solution

The fourth proportional to 258,677,940,486.68, 388,030,613,934.38 and 79,726,838,237.80 is: 119,594,480,805.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,677,940,486.68 : 388,030,613,934.38 = 79,726,838,237.80 : x
  2. Step 2: Convert to fraction form
    258,677,940,486.68/388,030,613,934.38 = 79,726,838,237.80/x
  3. Step 3: Cross multiply
    258,677,940,486.68x = 388,030,613,934.38 × 79,726,838,237.80
  4. Step 4: Simplify right side
    258,677,940,486.68x = 30,936,453,988,459,764,252,672
  5. Step 5: Solve for x
    x = 30,936,453,988,459,764,252,672/258,677,940,486.68
  6. Step 6: Final answer
    x = 119,594,480,805.96

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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.