Home / 31,423,090.20-43,357,365.56-18,367,823.78

Finding the Fourth Proportional to 31,423,090.20, 43,357,365.56 and 18,367,823.78

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Solution

The fourth proportional to 31,423,090.20, 43,357,365.56 and 18,367,823.78 is: 25,343,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423,090.20 : 43,357,365.56 = 18,367,823.78 : x
  2. Step 2: Convert to fraction form
    31,423,090.20/43,357,365.56 = 18,367,823.78/x
  3. Step 3: Cross multiply
    31,423,090.20x = 43,357,365.56 × 18,367,823.78
  4. Step 4: Simplify right side
    31,423,090.20x = 796,380,450,171,121.12
  5. Step 5: Solve for x
    x = 796,380,450,171,121.12/31,423,090.20
  6. Step 6: Final answer
    x = 25,343,797.99

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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.