Home / 28,545,571.82-39,392,928.09-15,492,830.91

Finding the Fourth Proportional to 28,545,571.82, 39,392,928.09 and 15,492,830.91

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Solution

The fourth proportional to 28,545,571.82, 39,392,928.09 and 15,492,830.91 is: 21,380,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,571.82 : 39,392,928.09 = 15,492,830.91 : x
  2. Step 2: Convert to fraction form
    28,545,571.82/39,392,928.09 = 15,492,830.91/x
  3. Step 3: Cross multiply
    28,545,571.82x = 39,392,928.09 × 15,492,830.91
  4. Step 4: Simplify right side
    28,545,571.82x = 610,307,973,978,439.62
  5. Step 5: Solve for x
    x = 610,307,973,978,439.62/28,545,571.82
  6. Step 6: Final answer
    x = 21,380,127.81

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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.