Home / 559,876,809.20-839,815,213.80-342,198,575.60

Finding the Fourth Proportional to 559,876,809.20, 839,815,213.80 and 342,198,575.60

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Solution

The fourth proportional to 559,876,809.20, 839,815,213.80 and 342,198,575.60 is: 513,297,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,876,809.20 : 839,815,213.80 = 342,198,575.60 : x
  2. Step 2: Convert to fraction form
    559,876,809.20/839,815,213.80 = 342,198,575.60/x
  3. Step 3: Cross multiply
    559,876,809.20x = 839,815,213.80 × 342,198,575.60
  4. Step 4: Simplify right side
    559,876,809.20x = 287,383,569,929,569,472
  5. Step 5: Solve for x
    x = 287,383,569,929,569,472/559,876,809.20
  6. Step 6: Final answer
    x = 513,297,863.40

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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.