Home / 21,650,229.72-29,877,314.54-12,948,400.94

Finding the Fourth Proportional to 21,650,229.72, 29,877,314.54 and 12,948,400.94

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Solution

The fourth proportional to 21,650,229.72, 29,877,314.54 and 12,948,400.94 is: 17,868,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650,229.72 : 29,877,314.54 = 12,948,400.94 : x
  2. Step 2: Convert to fraction form
    21,650,229.72/29,877,314.54 = 12,948,400.94/x
  3. Step 3: Cross multiply
    21,650,229.72x = 29,877,314.54 × 12,948,400.94
  4. Step 4: Simplify right side
    21,650,229.72x = 386,863,447,460,283.12
  5. Step 5: Solve for x
    x = 386,863,447,460,283.12/21,650,229.72
  6. Step 6: Final answer
    x = 17,868,791.81

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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.