Home / 31,186,754.60-43,035,536.54-18,133,087.42

Finding the Fourth Proportional to 31,186,754.60, 43,035,536.54 and 18,133,087.42

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Solution

The fourth proportional to 31,186,754.60, 43,035,536.54 and 18,133,087.42 is: 25,022,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186,754.60 : 43,035,536.54 = 18,133,087.42 : x
  2. Step 2: Convert to fraction form
    31,186,754.60/43,035,536.54 = 18,133,087.42/x
  3. Step 3: Cross multiply
    31,186,754.60x = 43,035,536.54 × 18,133,087.42
  4. Step 4: Simplify right side
    31,186,754.60x = 780,367,146,246,424.38
  5. Step 5: Solve for x
    x = 780,367,146,246,424.38/31,186,754.60
  6. Step 6: Final answer
    x = 25,022,390.31

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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.