Home / 391,810,634.32-587,715,864-142,834,557.44

Finding the Fourth Proportional to 391,810,634.32, 587,715,864 and 142,834,557.44

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Solution

The fourth proportional to 391,810,634.32, 587,715,864 and 142,834,557.44 is: 214,251,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,810,634.32 : 587,715,864 = 142,834,557.44 : x
  2. Step 2: Convert to fraction form
    391,810,634.32/587,715,864 = 142,834,557.44/x
  3. Step 3: Cross multiply
    391,810,634.32x = 587,715,864 × 142,834,557.44
  4. Step 4: Simplify right side
    391,810,634.32x = 83,946,135,334,907,232
  5. Step 5: Solve for x
    x = 83,946,135,334,907,232/391,810,634.32
  6. Step 6: Final answer
    x = 214,251,804.27

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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.