Home / 15,191,894.90-20,964,813.40-8,222,571.24

Finding the Fourth Proportional to 15,191,894.90, 20,964,813.40 and 8,222,571.24

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Solution

The fourth proportional to 15,191,894.90, 20,964,813.40 and 8,222,571.24 is: 11,347,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,894.90 : 20,964,813.40 = 8,222,571.24 : x
  2. Step 2: Convert to fraction form
    15,191,894.90/20,964,813.40 = 8,222,571.24/x
  3. Step 3: Cross multiply
    15,191,894.90x = 20,964,813.40 × 8,222,571.24
  4. Step 4: Simplify right side
    15,191,894.90x = 172,384,671,714,806.59
  5. Step 5: Solve for x
    x = 172,384,671,714,806.59/15,191,894.90
  6. Step 6: Final answer
    x = 11,347,147.47

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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.