Home / 212,781,147.61-319,263,893.21-114,297,939.77

Finding the Fourth Proportional to 212,781,147.61, 319,263,893.21 and 114,297,939.77

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Solution

The fourth proportional to 212,781,147.61, 319,263,893.21 and 114,297,939.77 is: 171,496,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,781,147.61 : 319,263,893.21 = 114,297,939.77 : x
  2. Step 2: Convert to fraction form
    212,781,147.61/319,263,893.21 = 114,297,939.77/x
  3. Step 3: Cross multiply
    212,781,147.61x = 319,263,893.21 × 114,297,939.77
  4. Step 4: Simplify right side
    212,781,147.61x = 36,491,205,236,852,288
  5. Step 5: Solve for x
    x = 36,491,205,236,852,288/212,781,147.61
  6. Step 6: Final answer
    x = 171,496,420.84

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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.