Home / 53,991,011.20-80,993,620.80-19,936,278.40

Finding the Fourth Proportional to 53,991,011.20, 80,993,620.80 and 19,936,278.40

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Solution

The fourth proportional to 53,991,011.20, 80,993,620.80 and 19,936,278.40 is: 29,907,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,991,011.20 : 80,993,620.80 = 19,936,278.40 : x
  2. Step 2: Convert to fraction form
    53,991,011.20/80,993,620.80 = 19,936,278.40/x
  3. Step 3: Cross multiply
    53,991,011.20x = 80,993,620.80 × 19,936,278.40
  4. Step 4: Simplify right side
    53,991,011.20x = 1,614,711,372,892,830.50
  5. Step 5: Solve for x
    x = 1,614,711,372,892,830.50/53,991,011.20
  6. Step 6: Final answer
    x = 29,907,040.76

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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.