Home / 6,778,015.20-10,163,815.20-3,938,997.60

Finding the Fourth Proportional to 6,778,015.20, 10,163,815.20 and 3,938,997.60

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Solution

The fourth proportional to 6,778,015.20, 10,163,815.20 and 3,938,997.60 is: 5,906,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778,015.20 : 10,163,815.20 = 3,938,997.60 : x
  2. Step 2: Convert to fraction form
    6,778,015.20/10,163,815.20 = 3,938,997.60/x
  3. Step 3: Cross multiply
    6,778,015.20x = 10,163,815.20 × 3,938,997.60
  4. Step 4: Simplify right side
    6,778,015.20x = 40,035,243,679,643.52
  5. Step 5: Solve for x
    x = 40,035,243,679,643.52/6,778,015.20
  6. Step 6: Final answer
    x = 5,906,632.32

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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.