Home / 285,617,753.28-394,160,813.64-161,854,315.20

Finding the Fourth Proportional to 285,617,753.28, 394,160,813.64 and 161,854,315.20

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Solution

The fourth proportional to 285,617,753.28, 394,160,813.64 and 161,854,315.20 is: 223,363,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,617,753.28 : 394,160,813.64 = 161,854,315.20 : x
  2. Step 2: Convert to fraction form
    285,617,753.28/394,160,813.64 = 161,854,315.20/x
  3. Step 3: Cross multiply
    285,617,753.28x = 394,160,813.64 × 161,854,315.20
  4. Step 4: Simplify right side
    285,617,753.28x = 63,796,628,570,377,016
  5. Step 5: Solve for x
    x = 63,796,628,570,377,016/285,617,753.28
  6. Step 6: Final answer
    x = 223,363,666.43

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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.