Home / 39,192,815.68-54,083,021.66-21,788,101.06

Finding the Fourth Proportional to 39,192,815.68, 54,083,021.66 and 21,788,101.06

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Solution

The fourth proportional to 39,192,815.68, 54,083,021.66 and 21,788,101.06 is: 30,065,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192,815.68 : 54,083,021.66 = 21,788,101.06 : x
  2. Step 2: Convert to fraction form
    39,192,815.68/54,083,021.66 = 21,788,101.06/x
  3. Step 3: Cross multiply
    39,192,815.68x = 54,083,021.66 × 21,788,101.06
  4. Step 4: Simplify right side
    39,192,815.68x = 1,178,366,341,558,248.75
  5. Step 5: Solve for x
    x = 1,178,366,341,558,248.75/39,192,815.68
  6. Step 6: Final answer
    x = 30,065,876.13

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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.