Home / 285,269,516.40-393,673,384.80-161,534,305.20

Finding the Fourth Proportional to 285,269,516.40, 393,673,384.80 and 161,534,305.20

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Solution

The fourth proportional to 285,269,516.40, 393,673,384.80 and 161,534,305.20 is: 222,918,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,269,516.40 : 393,673,384.80 = 161,534,305.20 : x
  2. Step 2: Convert to fraction form
    285,269,516.40/393,673,384.80 = 161,534,305.20/x
  3. Step 3: Cross multiply
    285,269,516.40x = 393,673,384.80 × 161,534,305.20
  4. Step 4: Simplify right side
    285,269,516.40x = 63,591,756,689,400,240
  5. Step 5: Solve for x
    x = 63,591,756,689,400,240/285,269,516.40
  6. Step 6: Final answer
    x = 222,918,163.47

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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.