Home / 20,390,245.74-30,585,451.06-8,259,938.58

Finding the Fourth Proportional to 20,390,245.74, 30,585,451.06 and 8,259,938.58

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Solution

The fourth proportional to 20,390,245.74, 30,585,451.06 and 8,259,938.58 is: 12,389,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390,245.74 : 30,585,451.06 = 8,259,938.58 : x
  2. Step 2: Convert to fraction form
    20,390,245.74/30,585,451.06 = 8,259,938.58/x
  3. Step 3: Cross multiply
    20,390,245.74x = 30,585,451.06 × 8,259,938.58
  4. Step 4: Simplify right side
    20,390,245.74x = 252,633,947,197,195.88
  5. Step 5: Solve for x
    x = 252,633,947,197,195.88/20,390,245.74
  6. Step 6: Final answer
    x = 12,389,941.27

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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.