Home / 15,869,721.78-21,607,232.04-15,819,333.30

Finding the Fourth Proportional to 15,869,721.78, 21,607,232.04 and 15,819,333.30

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Solution

The fourth proportional to 15,869,721.78, 21,607,232.04 and 15,819,333.30 is: 21,538,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869,721.78 : 21,607,232.04 = 15,819,333.30 : x
  2. Step 2: Convert to fraction form
    15,869,721.78/21,607,232.04 = 15,819,333.30/x
  3. Step 3: Cross multiply
    15,869,721.78x = 21,607,232.04 × 15,819,333.30
  4. Step 4: Simplify right side
    15,869,721.78x = 341,812,005,331,198.94
  5. Step 5: Solve for x
    x = 341,812,005,331,198.94/15,869,721.78
  6. Step 6: Final answer
    x = 21,538,626.20

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.