Home / 285,356,629.86-393,816,435.21-161,619,319.14

Finding the Fourth Proportional to 285,356,629.86, 393,816,435.21 and 161,619,319.14

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Solution

The fourth proportional to 285,356,629.86, 393,816,435.21 and 161,619,319.14 is: 223,048,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,356,629.86 : 393,816,435.21 = 161,619,319.14 : x
  2. Step 2: Convert to fraction form
    285,356,629.86/393,816,435.21 = 161,619,319.14/x
  3. Step 3: Cross multiply
    285,356,629.86x = 393,816,435.21 × 161,619,319.14
  4. Step 4: Simplify right side
    285,356,629.86x = 63,648,344,124,782,112
  5. Step 5: Solve for x
    x = 63,648,344,124,782,112/285,356,629.86
  6. Step 6: Final answer
    x = 223,048,415.44

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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.