Home / 18,928,298.40-28,355,122.80-11,332,701.60

Finding the Fourth Proportional to 18,928,298.40, 28,355,122.80 and 11,332,701.60

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Solution

The fourth proportional to 18,928,298.40, 28,355,122.80 and 11,332,701.60 is: 16,976,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,298.40 : 28,355,122.80 = 11,332,701.60 : x
  2. Step 2: Convert to fraction form
    18,928,298.40/28,355,122.80 = 11,332,701.60/x
  3. Step 3: Cross multiply
    18,928,298.40x = 28,355,122.80 × 11,332,701.60
  4. Step 4: Simplify right side
    18,928,298.40x = 321,340,145,523,756.50
  5. Step 5: Solve for x
    x = 321,340,145,523,756.50/18,928,298.40
  6. Step 6: Final answer
    x = 16,976,705.39

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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.