Home / 15,479,773.68-21,361,542.84-8,510,400.48

Finding the Fourth Proportional to 15,479,773.68, 21,361,542.84 and 8,510,400.48

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Solution

The fourth proportional to 15,479,773.68, 21,361,542.84 and 8,510,400.48 is: 11,744,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479,773.68 : 21,361,542.84 = 8,510,400.48 : x
  2. Step 2: Convert to fraction form
    15,479,773.68/21,361,542.84 = 8,510,400.48/x
  3. Step 3: Cross multiply
    15,479,773.68x = 21,361,542.84 × 8,510,400.48
  4. Step 4: Simplify right side
    15,479,773.68x = 181,795,284,439,076.56
  5. Step 5: Solve for x
    x = 181,795,284,439,076.56/15,479,773.68
  6. Step 6: Final answer
    x = 11,744,053.12

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1.5x scale

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.