Home / 21,868,941.33-30,179,064.21-12,576,072.69

Finding the Fourth Proportional to 21,868,941.33, 30,179,064.21 and 12,576,072.69

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Solution

The fourth proportional to 21,868,941.33, 30,179,064.21 and 12,576,072.69 is: 17,354,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868,941.33 : 30,179,064.21 = 12,576,072.69 : x
  2. Step 2: Convert to fraction form
    21,868,941.33/30,179,064.21 = 12,576,072.69/x
  3. Step 3: Cross multiply
    21,868,941.33x = 30,179,064.21 × 12,576,072.69
  4. Step 4: Simplify right side
    21,868,941.33x = 379,534,105,221,137.44
  5. Step 5: Solve for x
    x = 379,534,105,221,137.44/21,868,941.33
  6. Step 6: Final answer
    x = 17,354,937.28

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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.