Home / 13,021,136.78-17,958,801.40-8,375,455.49

Finding the Fourth Proportional to 13,021,136.78, 17,958,801.40 and 8,375,455.49

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Solution

The fourth proportional to 13,021,136.78, 17,958,801.40 and 8,375,455.49 is: 11,551,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,136.78 : 17,958,801.40 = 8,375,455.49 : x
  2. Step 2: Convert to fraction form
    13,021,136.78/17,958,801.40 = 8,375,455.49/x
  3. Step 3: Cross multiply
    13,021,136.78x = 17,958,801.40 × 8,375,455.49
  4. Step 4: Simplify right side
    13,021,136.78x = 150,413,141,668,717.06
  5. Step 5: Solve for x
    x = 150,413,141,668,717.06/13,021,136.78
  6. Step 6: Final answer
    x = 11,551,460.08

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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.