Home / 18,928,288.80-28,355,108.40-10,940,781.60

Finding the Fourth Proportional to 18,928,288.80, 28,355,108.40 and 10,940,781.60

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Solution

The fourth proportional to 18,928,288.80, 28,355,108.40 and 10,940,781.60 is: 16,389,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,288.80 : 28,355,108.40 = 10,940,781.60 : x
  2. Step 2: Convert to fraction form
    18,928,288.80/28,355,108.40 = 10,940,781.60/x
  3. Step 3: Cross multiply
    18,928,288.80x = 28,355,108.40 × 10,940,781.60
  4. Step 4: Simplify right side
    18,928,288.80x = 310,227,048,248,725.44
  5. Step 5: Solve for x
    x = 310,227,048,248,725.44/18,928,288.80
  6. Step 6: Final answer
    x = 16,389,598.21

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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.