Home / 21,308,143.23-29,385,627.44-13,963,308.75

Finding the Fourth Proportional to 21,308,143.23, 29,385,627.44 and 13,963,308.75

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Solution

The fourth proportional to 21,308,143.23, 29,385,627.44 and 13,963,308.75 is: 19,256,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,143.23 : 29,385,627.44 = 13,963,308.75 : x
  2. Step 2: Convert to fraction form
    21,308,143.23/29,385,627.44 = 13,963,308.75/x
  3. Step 3: Cross multiply
    21,308,143.23x = 29,385,627.44 × 13,963,308.75
  4. Step 4: Simplify right side
    21,308,143.23x = 410,320,588,687,375.56
  5. Step 5: Solve for x
    x = 410,320,588,687,375.56/21,308,143.23
  6. Step 6: Final answer
    x = 19,256,515.42

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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.