Home / 21,273,043.53-31,885,359.92-12,945,480.23

Finding the Fourth Proportional to 21,273,043.53, 31,885,359.92 and 12,945,480.23

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Solution

The fourth proportional to 21,273,043.53, 31,885,359.92 and 12,945,480.23 is: 19,403,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,043.53 : 31,885,359.92 = 12,945,480.23 : x
  2. Step 2: Convert to fraction form
    21,273,043.53/31,885,359.92 = 12,945,480.23/x
  3. Step 3: Cross multiply
    21,273,043.53x = 31,885,359.92 × 12,945,480.23
  4. Step 4: Simplify right side
    21,273,043.53x = 412,771,296,246,640.19
  5. Step 5: Solve for x
    x = 412,771,296,246,640.19/21,273,043.53
  6. Step 6: Final answer
    x = 19,403,490.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.