Home / 20,830,957.56-28,747,370.21-11,539,392.21

Finding the Fourth Proportional to 20,830,957.56, 28,747,370.21 and 11,539,392.21

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Solution

The fourth proportional to 20,830,957.56, 28,747,370.21 and 11,539,392.21 is: 15,924,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,957.56 : 28,747,370.21 = 11,539,392.21 : x
  2. Step 2: Convert to fraction form
    20,830,957.56/28,747,370.21 = 11,539,392.21/x
  3. Step 3: Cross multiply
    20,830,957.56x = 28,747,370.21 × 11,539,392.21
  4. Step 4: Simplify right side
    20,830,957.56x = 331,727,179,801,563.12
  5. Step 5: Solve for x
    x = 331,727,179,801,563.12/20,830,957.56
  6. Step 6: Final answer
    x = 15,924,720.64

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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.