Home / 8,990,690.40-13,486,035.60-3,600,172.80

Finding the Fourth Proportional to 8,990,690.40, 13,486,035.60 and 3,600,172.80

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Solution

The fourth proportional to 8,990,690.40, 13,486,035.60 and 3,600,172.80 is: 5,400,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,690.40 : 13,486,035.60 = 3,600,172.80 : x
  2. Step 2: Convert to fraction form
    8,990,690.40/13,486,035.60 = 3,600,172.80/x
  3. Step 3: Cross multiply
    8,990,690.40x = 13,486,035.60 × 3,600,172.80
  4. Step 4: Simplify right side
    8,990,690.40x = 48,552,058,546,951.68
  5. Step 5: Solve for x
    x = 48,552,058,546,951.68/8,990,690.40
  6. Step 6: Final answer
    x = 5,400,259.20

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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.