Home / 402,408,052.80-603,612,079.20-115,193,716.80

Finding the Fourth Proportional to 402,408,052.80, 603,612,079.20 and 115,193,716.80

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Solution

The fourth proportional to 402,408,052.80, 603,612,079.20 and 115,193,716.80 is: 172,790,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,052.80 : 603,612,079.20 = 115,193,716.80 : x
  2. Step 2: Convert to fraction form
    402,408,052.80/603,612,079.20 = 115,193,716.80/x
  3. Step 3: Cross multiply
    402,408,052.80x = 603,612,079.20 × 115,193,716.80
  4. Step 4: Simplify right side
    402,408,052.80x = 69,532,318,908,423,976
  5. Step 5: Solve for x
    x = 69,532,318,908,423,976/402,408,052.80
  6. Step 6: Final answer
    x = 172,790,575.20

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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.