Home / 19,170,280.80-28,744,923.60-7,797,880.80

Finding the Fourth Proportional to 19,170,280.80, 28,744,923.60 and 7,797,880.80

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Solution

The fourth proportional to 19,170,280.80, 28,744,923.60 and 7,797,880.80 is: 11,692,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170,280.80 : 28,744,923.60 = 7,797,880.80 : x
  2. Step 2: Convert to fraction form
    19,170,280.80/28,744,923.60 = 7,797,880.80/x
  3. Step 3: Cross multiply
    19,170,280.80x = 28,744,923.60 × 7,797,880.80
  4. Step 4: Simplify right side
    19,170,280.80x = 224,149,487,837,906.88
  5. Step 5: Solve for x
    x = 224,149,487,837,906.88/19,170,280.80
  6. Step 6: Final answer
    x = 11,692,551.10

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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.