Home / 31,421,953.53-43,361,614.89-18,191,687.91

Finding the Fourth Proportional to 31,421,953.53, 43,361,614.89 and 18,191,687.91

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Solution

The fourth proportional to 31,421,953.53, 43,361,614.89 and 18,191,687.91 is: 25,104,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421,953.53 : 43,361,614.89 = 18,191,687.91 : x
  2. Step 2: Convert to fraction form
    31,421,953.53/43,361,614.89 = 18,191,687.91/x
  3. Step 3: Cross multiply
    31,421,953.53x = 43,361,614.89 × 18,191,687.91
  4. Step 4: Simplify right side
    31,421,953.53x = 788,820,965,352,489
  5. Step 5: Solve for x
    x = 788,820,965,352,489/31,421,953.53
  6. Step 6: Final answer
    x = 25,104,135.06

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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.