Home / 245,608,284.21-338,969,153.34-139,787,428.38

Finding the Fourth Proportional to 245,608,284.21, 338,969,153.34 and 139,787,428.38

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Solution

The fourth proportional to 245,608,284.21, 338,969,153.34 and 139,787,428.38 is: 192,923,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,608,284.21 : 338,969,153.34 = 139,787,428.38 : x
  2. Step 2: Convert to fraction form
    245,608,284.21/338,969,153.34 = 139,787,428.38/x
  3. Step 3: Cross multiply
    245,608,284.21x = 338,969,153.34 × 139,787,428.38
  4. Step 4: Simplify right side
    245,608,284.21x = 47,383,626,245,544,480
  5. Step 5: Solve for x
    x = 47,383,626,245,544,480/245,608,284.21
  6. Step 6: Final answer
    x = 192,923,566.88

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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.