Home / 402,434,400.80-603,651,601.20-321,812,832.80

Finding the Fourth Proportional to 402,434,400.80, 603,651,601.20 and 321,812,832.80

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Solution

The fourth proportional to 402,434,400.80, 603,651,601.20 and 321,812,832.80 is: 482,719,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,434,400.80 : 603,651,601.20 = 321,812,832.80 : x
  2. Step 2: Convert to fraction form
    402,434,400.80/603,651,601.20 = 321,812,832.80/x
  3. Step 3: Cross multiply
    402,434,400.80x = 603,651,601.20 × 321,812,832.80
  4. Step 4: Simplify right side
    402,434,400.80x = 194,262,831,806,427,904
  5. Step 5: Solve for x
    x = 194,262,831,806,427,904/402,434,400.80
  6. Step 6: Final answer
    x = 482,719,249.20

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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.