Home / 15,628,982.94-21,556,136.12-13,691,880.50

Finding the Fourth Proportional to 15,628,982.94, 21,556,136.12 and 13,691,880.50

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Solution

The fourth proportional to 15,628,982.94, 21,556,136.12 and 13,691,880.50 is: 18,884,404.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628,982.94 : 21,556,136.12 = 13,691,880.50 : x
  2. Step 2: Convert to fraction form
    15,628,982.94/21,556,136.12 = 13,691,880.50/x
  3. Step 3: Cross multiply
    15,628,982.94x = 21,556,136.12 × 13,691,880.50
  4. Step 4: Simplify right side
    15,628,982.94x = 295,144,039,620,533.56
  5. Step 5: Solve for x
    x = 295,144,039,620,533.56/15,628,982.94
  6. Step 6: Final answer
    x = 18,884,404.75

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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.