Home / 6,778,123.20-10,163,977.20-3,939,105.60

Finding the Fourth Proportional to 6,778,123.20, 10,163,977.20 and 3,939,105.60

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Solution

The fourth proportional to 6,778,123.20, 10,163,977.20 and 3,939,105.60 is: 5,906,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778,123.20 : 10,163,977.20 = 3,939,105.60 : x
  2. Step 2: Convert to fraction form
    6,778,123.20/10,163,977.20 = 3,939,105.60/x
  3. Step 3: Cross multiply
    6,778,123.20x = 10,163,977.20 × 3,939,105.60
  4. Step 4: Simplify right side
    6,778,123.20x = 40,036,979,506,792.32
  5. Step 5: Solve for x
    x = 40,036,979,506,792.32/6,778,123.20
  6. Step 6: Final answer
    x = 5,906,794.30

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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.