Home / 15,854,018.52-21,877,813.20-8,978,550.12

Finding the Fourth Proportional to 15,854,018.52, 21,877,813.20 and 8,978,550.12

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Solution

The fourth proportional to 15,854,018.52, 21,877,813.20 and 8,978,550.12 is: 12,389,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854,018.52 : 21,877,813.20 = 8,978,550.12 : x
  2. Step 2: Convert to fraction form
    15,854,018.52/21,877,813.20 = 8,978,550.12/x
  3. Step 3: Cross multiply
    15,854,018.52x = 21,877,813.20 × 8,978,550.12
  4. Step 4: Simplify right side
    15,854,018.52x = 196,431,042,332,197.56
  5. Step 5: Solve for x
    x = 196,431,042,332,197.56/15,854,018.52
  6. Step 6: Final answer
    x = 12,389,984.41

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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.