Home / 21,273,044.03-31,885,360.67-12,945,480.73

Finding the Fourth Proportional to 21,273,044.03, 31,885,360.67 and 12,945,480.73

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Solution

The fourth proportional to 21,273,044.03, 31,885,360.67 and 12,945,480.73 is: 19,403,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,044.03 : 31,885,360.67 = 12,945,480.73 : x
  2. Step 2: Convert to fraction form
    21,273,044.03/31,885,360.67 = 12,945,480.73/x
  3. Step 3: Cross multiply
    21,273,044.03x = 31,885,360.67 × 12,945,480.73
  4. Step 4: Simplify right side
    21,273,044.03x = 412,771,321,898,430.69
  5. Step 5: Solve for x
    x = 412,771,321,898,430.69/21,273,044.03
  6. Step 6: Final answer
    x = 19,403,491.17

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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.