Home / 354,295,489.40-531,443,234.10-321,983,876.60

Finding the Fourth Proportional to 354,295,489.40, 531,443,234.10 and 321,983,876.60

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Solution

The fourth proportional to 354,295,489.40, 531,443,234.10 and 321,983,876.60 is: 482,975,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,489.40 : 531,443,234.10 = 321,983,876.60 : x
  2. Step 2: Convert to fraction form
    354,295,489.40/531,443,234.10 = 321,983,876.60/x
  3. Step 3: Cross multiply
    354,295,489.40x = 531,443,234.10 × 321,983,876.60
  4. Step 4: Simplify right side
    354,295,489.40x = 171,116,152,708,359,328
  5. Step 5: Solve for x
    x = 171,116,152,708,359,328/354,295,489.40
  6. Step 6: Final answer
    x = 482,975,814.90

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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.