Home / 20,792,757.02-31,182,502.42-7,142,611.86

Finding the Fourth Proportional to 20,792,757.02, 31,182,502.42 and 7,142,611.86

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Solution

The fourth proportional to 20,792,757.02, 31,182,502.42 and 7,142,611.86 is: 10,711,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792,757.02 : 31,182,502.42 = 7,142,611.86 : x
  2. Step 2: Convert to fraction form
    20,792,757.02/31,182,502.42 = 7,142,611.86/x
  3. Step 3: Cross multiply
    20,792,757.02x = 31,182,502.42 × 7,142,611.86
  4. Step 4: Simplify right side
    20,792,757.02x = 222,724,511,453,658.22
  5. Step 5: Solve for x
    x = 222,724,511,453,658.22/20,792,757.02
  6. Step 6: Final answer
    x = 10,711,639.22

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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.