Home / 20,412,042.40-30,618,063.60-19,719,200.80

Finding the Fourth Proportional to 20,412,042.40, 30,618,063.60 and 19,719,200.80

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Solution

The fourth proportional to 20,412,042.40, 30,618,063.60 and 19,719,200.80 is: 29,578,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,042.40 : 30,618,063.60 = 19,719,200.80 : x
  2. Step 2: Convert to fraction form
    20,412,042.40/30,618,063.60 = 19,719,200.80/x
  3. Step 3: Cross multiply
    20,412,042.40x = 30,618,063.60 × 19,719,200.80
  4. Step 4: Simplify right side
    20,412,042.40x = 603,763,744,235,570.88
  5. Step 5: Solve for x
    x = 603,763,744,235,570.88/20,412,042.40
  6. Step 6: Final answer
    x = 29,578,801.20

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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.