Home / 699,253,756-964,966,818.74-385,985,229.72

Finding the Fourth Proportional to 699,253,756, 964,966,818.74 and 385,985,229.72

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Solution

The fourth proportional to 699,253,756, 964,966,818.74 and 385,985,229.72 is: 532,657,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,253,756 : 964,966,818.74 = 385,985,229.72 : x
  2. Step 2: Convert to fraction form
    699,253,756/964,966,818.74 = 385,985,229.72/x
  3. Step 3: Cross multiply
    699,253,756x = 964,966,818.74 × 385,985,229.72
  4. Step 4: Simplify right side
    699,253,756x = 372,462,939,203,536,512
  5. Step 5: Solve for x
    x = 372,462,939,203,536,512/699,253,756
  6. Step 6: Final answer
    x = 532,657,759.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.