Home / 20,447,739.40-30,734,594.70-19,313,998.60

Finding the Fourth Proportional to 20,447,739.40, 30,734,594.70 and 19,313,998.60

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Solution

The fourth proportional to 20,447,739.40, 30,734,594.70 and 19,313,998.60 is: 29,030,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447,739.40 : 30,734,594.70 = 19,313,998.60 : x
  2. Step 2: Convert to fraction form
    20,447,739.40/30,734,594.70 = 19,313,998.60/x
  3. Step 3: Cross multiply
    20,447,739.40x = 30,734,594.70 × 19,313,998.60
  4. Step 4: Simplify right side
    20,447,739.40x = 593,607,919,007,367.50
  5. Step 5: Solve for x
    x = 593,607,919,007,367.50/20,447,739.40
  6. Step 6: Final answer
    x = 29,030,491.21

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1.5x scale

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.