Home / 285,356,623.36-393,816,426.24-161,619,312.64

Finding the Fourth Proportional to 285,356,623.36, 393,816,426.24 and 161,619,312.64

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Solution

The fourth proportional to 285,356,623.36, 393,816,426.24 and 161,619,312.64 is: 223,048,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,356,623.36 : 393,816,426.24 = 161,619,312.64 : x
  2. Step 2: Convert to fraction form
    285,356,623.36/393,816,426.24 = 161,619,312.64/x
  3. Step 3: Cross multiply
    285,356,623.36x = 393,816,426.24 × 161,619,312.64
  4. Step 4: Simplify right side
    285,356,623.36x = 63,648,340,115,250,056
  5. Step 5: Solve for x
    x = 63,648,340,115,250,056/285,356,623.36
  6. Step 6: Final answer
    x = 223,048,406.47

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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.