Home / 214,531,442.40-321,965,125.20-99,530,234.40

Finding the Fourth Proportional to 214,531,442.40, 321,965,125.20 and 99,530,234.40

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Solution

The fourth proportional to 214,531,442.40, 321,965,125.20 and 99,530,234.40 is: 149,373,276.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,531,442.40 : 321,965,125.20 = 99,530,234.40 : x
  2. Step 2: Convert to fraction form
    214,531,442.40/321,965,125.20 = 99,530,234.40/x
  3. Step 3: Cross multiply
    214,531,442.40x = 321,965,125.20 × 99,530,234.40
  4. Step 4: Simplify right side
    214,531,442.40x = 32,045,264,379,781,348
  5. Step 5: Solve for x
    x = 32,045,264,379,781,348/214,531,442.40
  6. Step 6: Final answer
    x = 149,373,276.11

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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.