Home / 699,235,672.68-964,945,082.70-385,969,804.92

Finding the Fourth Proportional to 699,235,672.68, 964,945,082.70 and 385,969,804.92

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Solution

The fourth proportional to 699,235,672.68, 964,945,082.70 and 385,969,804.92 is: 532,638,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,235,672.68 : 964,945,082.70 = 385,969,804.92 : x
  2. Step 2: Convert to fraction form
    699,235,672.68/964,945,082.70 = 385,969,804.92/x
  3. Step 3: Cross multiply
    699,235,672.68x = 964,945,082.70 × 385,969,804.92
  4. Step 4: Simplify right side
    699,235,672.68x = 372,439,665,328,232,320
  5. Step 5: Solve for x
    x = 372,439,665,328,232,320/699,235,672.68
  6. Step 6: Final answer
    x = 532,638,250.42

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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.