Home / 252,971,340-349,061,843.64-142,922,899.68

Finding the Fourth Proportional to 252,971,340, 349,061,843.64 and 142,922,899.68

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Solution

The fourth proportional to 252,971,340, 349,061,843.64 and 142,922,899.68 is: 197,211,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,971,340 : 349,061,843.64 = 142,922,899.68 : x
  2. Step 2: Convert to fraction form
    252,971,340/349,061,843.64 = 142,922,899.68/x
  3. Step 3: Cross multiply
    252,971,340x = 349,061,843.64 × 142,922,899.68
  4. Step 4: Simplify right side
    252,971,340x = 49,888,930,860,675,568
  5. Step 5: Solve for x
    x = 49,888,930,860,675,568/252,971,340
  6. Step 6: Final answer
    x = 197,211,790.32

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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.