Home / 31,186,753.60-43,035,535.16-18,133,086.42

Finding the Fourth Proportional to 31,186,753.60, 43,035,535.16 and 18,133,086.42

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Solution

The fourth proportional to 31,186,753.60, 43,035,535.16 and 18,133,086.42 is: 25,022,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186,753.60 : 43,035,535.16 = 18,133,086.42 : x
  2. Step 2: Convert to fraction form
    31,186,753.60/43,035,535.16 = 18,133,086.42/x
  3. Step 3: Cross multiply
    31,186,753.60x = 43,035,535.16 × 18,133,086.42
  4. Step 4: Simplify right side
    31,186,753.60x = 780,367,078,187,228.50
  5. Step 5: Solve for x
    x = 780,367,078,187,228.50/31,186,753.60
  6. Step 6: Final answer
    x = 25,022,388.93

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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.