Home / 20,643,097.20-28,489,197.72-11,476,592.88

Finding the Fourth Proportional to 20,643,097.20, 28,489,197.72 and 11,476,592.88

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Solution

The fourth proportional to 20,643,097.20, 28,489,197.72 and 11,476,592.88 is: 15,838,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,097.20 : 28,489,197.72 = 11,476,592.88 : x
  2. Step 2: Convert to fraction form
    20,643,097.20/28,489,197.72 = 11,476,592.88/x
  3. Step 3: Cross multiply
    20,643,097.20x = 28,489,197.72 × 11,476,592.88
  4. Step 4: Simplify right side
    20,643,097.20x = 326,958,923,710,264.25
  5. Step 5: Solve for x
    x = 326,958,923,710,264.25/20,643,097.20
  6. Step 6: Final answer
    x = 15,838,656.41

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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.