Home / 20,774,569.23-28,670,389.83-11,481,939.41

Finding the Fourth Proportional to 20,774,569.23, 28,670,389.83 and 11,481,939.41

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Solution

The fourth proportional to 20,774,569.23, 28,670,389.83 and 11,481,939.41 is: 15,845,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,569.23 : 28,670,389.83 = 11,481,939.41 : x
  2. Step 2: Convert to fraction form
    20,774,569.23/28,670,389.83 = 11,481,939.41/x
  3. Step 3: Cross multiply
    20,774,569.23x = 28,670,389.83 × 11,481,939.41
  4. Step 4: Simplify right side
    20,774,569.23x = 329,191,678,745,788.19
  5. Step 5: Solve for x
    x = 329,191,678,745,788.19/20,774,569.23
  6. Step 6: Final answer
    x = 15,845,896.74

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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.