Home / 21,915,179.36-30,243,839.83-12,125,465

Finding the Fourth Proportional to 21,915,179.36, 30,243,839.83 and 12,125,465

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Solution

The fourth proportional to 21,915,179.36, 30,243,839.83 and 12,125,465 is: 16,733,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915,179.36 : 30,243,839.83 = 12,125,465 : x
  2. Step 2: Convert to fraction form
    21,915,179.36/30,243,839.83 = 12,125,465/x
  3. Step 3: Cross multiply
    21,915,179.36x = 30,243,839.83 × 12,125,465
  4. Step 4: Simplify right side
    21,915,179.36x = 366,720,621,324,270.94
  5. Step 5: Solve for x
    x = 366,720,621,324,270.94/21,915,179.36
  6. Step 6: Final answer
    x = 16,733,635.41

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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.