Home / 263,156,006.80-394,734,010.20-71,679,782.80

Finding the Fourth Proportional to 263,156,006.80, 394,734,010.20 and 71,679,782.80

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Solution

The fourth proportional to 263,156,006.80, 394,734,010.20 and 71,679,782.80 is: 107,519,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,156,006.80 : 394,734,010.20 = 71,679,782.80 : x
  2. Step 2: Convert to fraction form
    263,156,006.80/394,734,010.20 = 71,679,782.80/x
  3. Step 3: Cross multiply
    263,156,006.80x = 394,734,010.20 × 71,679,782.80
  4. Step 4: Simplify right side
    263,156,006.80x = 28,294,448,114,908,984
  5. Step 5: Solve for x
    x = 28,294,448,114,908,984/263,156,006.80
  6. Step 6: Final answer
    x = 107,519,674.20

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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.