Home / 20,220,400.80-30,330,601.20-19,104,374.70

Finding the Fourth Proportional to 20,220,400.80, 30,330,601.20 and 19,104,374.70

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Solution

The fourth proportional to 20,220,400.80, 30,330,601.20 and 19,104,374.70 is: 28,656,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,400.80 : 30,330,601.20 = 19,104,374.70 : x
  2. Step 2: Convert to fraction form
    20,220,400.80/30,330,601.20 = 19,104,374.70/x
  3. Step 3: Cross multiply
    20,220,400.80x = 30,330,601.20 × 19,104,374.70
  4. Step 4: Simplify right side
    20,220,400.80x = 579,447,170,201,069.62
  5. Step 5: Solve for x
    x = 579,447,170,201,069.62/20,220,400.80
  6. Step 6: Final answer
    x = 28,656,562.05

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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.