Home / 20,941,128.75-28,900,503.59-11,650,449.31

Finding the Fourth Proportional to 20,941,128.75, 28,900,503.59 and 11,650,449.31

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Solution

The fourth proportional to 20,941,128.75, 28,900,503.59 and 11,650,449.31 is: 16,078,591.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941,128.75 : 28,900,503.59 = 11,650,449.31 : x
  2. Step 2: Convert to fraction form
    20,941,128.75/28,900,503.59 = 11,650,449.31/x
  3. Step 3: Cross multiply
    20,941,128.75x = 28,900,503.59 × 11,650,449.31
  4. Step 4: Simplify right side
    20,941,128.75x = 336,703,852,043,798.25
  5. Step 5: Solve for x
    x = 336,703,852,043,798.25/20,941,128.75
  6. Step 6: Final answer
    x = 16,078,591.37

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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.