Home / 12,486,735.12-18,729,355.32-3,388,631.28

Finding the Fourth Proportional to 12,486,735.12, 18,729,355.32 and 3,388,631.28

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Solution

The fourth proportional to 12,486,735.12, 18,729,355.32 and 3,388,631.28 is: 5,082,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,735.12 : 18,729,355.32 = 3,388,631.28 : x
  2. Step 2: Convert to fraction form
    12,486,735.12/18,729,355.32 = 3,388,631.28/x
  3. Step 3: Cross multiply
    12,486,735.12x = 18,729,355.32 × 3,388,631.28
  4. Step 4: Simplify right side
    12,486,735.12x = 63,466,879,291,586.41
  5. Step 5: Solve for x
    x = 63,466,879,291,586.41/12,486,735.12
  6. Step 6: Final answer
    x = 5,082,744.10

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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.