Home / 21,092,436-29,110,667.76-13,358,197.44

Finding the Fourth Proportional to 21,092,436, 29,110,667.76 and 13,358,197.44

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Solution

The fourth proportional to 21,092,436, 29,110,667.76 and 13,358,197.44 is: 18,436,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092,436 : 29,110,667.76 = 13,358,197.44 : x
  2. Step 2: Convert to fraction form
    21,092,436/29,110,667.76 = 13,358,197.44/x
  3. Step 3: Cross multiply
    21,092,436x = 29,110,667.76 × 13,358,197.44
  4. Step 4: Simplify right side
    21,092,436x = 388,866,047,548,322.56
  5. Step 5: Solve for x
    x = 388,866,047,548,322.56/21,092,436
  6. Step 6: Final answer
    x = 18,436,279.60

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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.