Home / 25,879,427.20-38,819,140.80-12,409,321.60

Finding the Fourth Proportional to 25,879,427.20, 38,819,140.80 and 12,409,321.60

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Solution

The fourth proportional to 25,879,427.20, 38,819,140.80 and 12,409,321.60 is: 18,613,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879,427.20 : 38,819,140.80 = 12,409,321.60 : x
  2. Step 2: Convert to fraction form
    25,879,427.20/38,819,140.80 = 12,409,321.60/x
  3. Step 3: Cross multiply
    25,879,427.20x = 38,819,140.80 × 12,409,321.60
  4. Step 4: Simplify right side
    25,879,427.20x = 481,719,202,422,881.25
  5. Step 5: Solve for x
    x = 481,719,202,422,881.25/25,879,427.20
  6. Step 6: Final answer
    x = 18,613,982.40

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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.