Home / 25,879,969.20-38,819,953.80-12,409,863.60

Finding the Fourth Proportional to 25,879,969.20, 38,819,953.80 and 12,409,863.60

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Solution

The fourth proportional to 25,879,969.20, 38,819,953.80 and 12,409,863.60 is: 18,614,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879,969.20 : 38,819,953.80 = 12,409,863.60 : x
  2. Step 2: Convert to fraction form
    25,879,969.20/38,819,953.80 = 12,409,863.60/x
  3. Step 3: Cross multiply
    25,879,969.20x = 38,819,953.80 × 12,409,863.60
  4. Step 4: Simplify right side
    25,879,969.20x = 481,750,331,616,301.62
  5. Step 5: Solve for x
    x = 481,750,331,616,301.62/25,879,969.20
  6. Step 6: Final answer
    x = 18,614,795.40

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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.