Home / 8,990,801.20-13,486,201.80-5,148,679.60

Finding the Fourth Proportional to 8,990,801.20, 13,486,201.80 and 5,148,679.60

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Solution

The fourth proportional to 8,990,801.20, 13,486,201.80 and 5,148,679.60 is: 7,723,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,801.20 : 13,486,201.80 = 5,148,679.60 : x
  2. Step 2: Convert to fraction form
    8,990,801.20/13,486,201.80 = 5,148,679.60/x
  3. Step 3: Cross multiply
    8,990,801.20x = 13,486,201.80 × 5,148,679.60
  4. Step 4: Simplify right side
    8,990,801.20x = 69,436,132,089,143.28
  5. Step 5: Solve for x
    x = 69,436,132,089,143.28/8,990,801.20
  6. Step 6: Final answer
    x = 7,723,019.40

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1.5x scale

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.