Home / 28,230,778.88-42,348,192.39-11,819,548.65

Finding the Fourth Proportional to 28,230,778.88, 42,348,192.39 and 11,819,548.65

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Solution

The fourth proportional to 28,230,778.88, 42,348,192.39 and 11,819,548.65 is: 17,730,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230,778.88 : 42,348,192.39 = 11,819,548.65 : x
  2. Step 2: Convert to fraction form
    28,230,778.88/42,348,192.39 = 11,819,548.65/x
  3. Step 3: Cross multiply
    28,230,778.88x = 42,348,192.39 × 11,819,548.65
  4. Step 4: Simplify right side
    28,230,778.88x = 500,536,520,351,970.50
  5. Step 5: Solve for x
    x = 500,536,520,351,970.50/28,230,778.88
  6. Step 6: Final answer
    x = 17,730,170.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.