Home / 20,774,570.23-28,670,391.21-11,481,940.41

Finding the Fourth Proportional to 20,774,570.23, 28,670,391.21 and 11,481,940.41

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Solution

The fourth proportional to 20,774,570.23, 28,670,391.21 and 11,481,940.41 is: 15,845,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,570.23 : 28,670,391.21 = 11,481,940.41 : x
  2. Step 2: Convert to fraction form
    20,774,570.23/28,670,391.21 = 11,481,940.41/x
  3. Step 3: Cross multiply
    20,774,570.23x = 28,670,391.21 × 11,481,940.41
  4. Step 4: Simplify right side
    20,774,570.23x = 329,191,723,404,607.81
  5. Step 5: Solve for x
    x = 329,191,723,404,607.81/20,774,570.23
  6. Step 6: Final answer
    x = 15,845,898.12

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1.5x scale

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.