Home / 263,103,452.80-394,709,642.88-78,863,487.04

Finding the Fourth Proportional to 263,103,452.80, 394,709,642.88 and 78,863,487.04

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Solution

The fourth proportional to 263,103,452.80, 394,709,642.88 and 78,863,487.04 is: 118,311,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,103,452.80 : 394,709,642.88 = 78,863,487.04 : x
  2. Step 2: Convert to fraction form
    263,103,452.80/394,709,642.88 = 78,863,487.04/x
  3. Step 3: Cross multiply
    263,103,452.80x = 394,709,642.88 × 78,863,487.04
  4. Step 4: Simplify right side
    263,103,452.80x = 31,128,178,805,829,912
  5. Step 5: Solve for x
    x = 31,128,178,805,829,912/263,103,452.80
  6. Step 6: Final answer
    x = 118,311,555.68

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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.