Home / 18,928,015.60-28,392,023.40-11,747,657.20

Finding the Fourth Proportional to 18,928,015.60, 28,392,023.40 and 11,747,657.20

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Solution

The fourth proportional to 18,928,015.60, 28,392,023.40 and 11,747,657.20 is: 17,621,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,015.60 : 28,392,023.40 = 11,747,657.20 : x
  2. Step 2: Convert to fraction form
    18,928,015.60/28,392,023.40 = 11,747,657.20/x
  3. Step 3: Cross multiply
    18,928,015.60x = 28,392,023.40 × 11,747,657.20
  4. Step 4: Simplify right side
    18,928,015.60x = 333,539,758,117,578.44
  5. Step 5: Solve for x
    x = 333,539,758,117,578.44/18,928,015.60
  6. Step 6: Final answer
    x = 17,621,485.80

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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.