Home / 21,081,302.25-31,444,744.22-19,143,904.56

Finding the Fourth Proportional to 21,081,302.25, 31,444,744.22 and 19,143,904.56

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Solution

The fourth proportional to 21,081,302.25, 31,444,744.22 and 19,143,904.56 is: 28,554,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,302.25 : 31,444,744.22 = 19,143,904.56 : x
  2. Step 2: Convert to fraction form
    21,081,302.25/31,444,744.22 = 19,143,904.56/x
  3. Step 3: Cross multiply
    21,081,302.25x = 31,444,744.22 × 19,143,904.56
  4. Step 4: Simplify right side
    21,081,302.25x = 601,975,182,165,572.12
  5. Step 5: Solve for x
    x = 601,975,182,165,572.12/21,081,302.25
  6. Step 6: Final answer
    x = 28,554,933.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.