Home / 261,112,129,866.55-391,847,103,326.60-91,131,718,853.37

Finding the Fourth Proportional to 261,112,129,866.55, 391,847,103,326.60 and 91,131,718,853.37

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Solution

The fourth proportional to 261,112,129,866.55, 391,847,103,326.60 and 91,131,718,853.37 is: 136,760,019,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,112,129,866.55 : 391,847,103,326.60 = 91,131,718,853.37 : x
  2. Step 2: Convert to fraction form
    261,112,129,866.55/391,847,103,326.60 = 91,131,718,853.37/x
  3. Step 3: Cross multiply
    261,112,129,866.55x = 391,847,103,326.60 × 91,131,718,853.37
  4. Step 4: Simplify right side
    261,112,129,866.55x = 35,709,700,053,865,175,449,600
  5. Step 5: Solve for x
    x = 35,709,700,053,865,175,449,600/261,112,129,866.55
  6. Step 6: Final answer
    x = 136,760,019,812.62

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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.