Home / 19,286,321.49-28,929,644.42-4,909,391.73

Finding the Fourth Proportional to 19,286,321.49, 28,929,644.42 and 4,909,391.73

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Solution

The fourth proportional to 19,286,321.49, 28,929,644.42 and 4,909,391.73 is: 7,364,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286,321.49 : 28,929,644.42 = 4,909,391.73 : x
  2. Step 2: Convert to fraction form
    19,286,321.49/28,929,644.42 = 4,909,391.73/x
  3. Step 3: Cross multiply
    19,286,321.49x = 28,929,644.42 × 4,909,391.73
  4. Step 4: Simplify right side
    19,286,321.49x = 142,026,957,042,841.69
  5. Step 5: Solve for x
    x = 142,026,957,042,841.69/19,286,321.49
  6. Step 6: Final answer
    x = 7,364,128.88

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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.