Home / 25,753,985.20-38,630,977.80-19,782,017.20

Finding the Fourth Proportional to 25,753,985.20, 38,630,977.80 and 19,782,017.20

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Solution

The fourth proportional to 25,753,985.20, 38,630,977.80 and 19,782,017.20 is: 29,673,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,753,985.20 : 38,630,977.80 = 19,782,017.20 : x
  2. Step 2: Convert to fraction form
    25,753,985.20/38,630,977.80 = 19,782,017.20/x
  3. Step 3: Cross multiply
    25,753,985.20x = 38,630,977.80 × 19,782,017.20
  4. Step 4: Simplify right side
    25,753,985.20x = 764,198,667,292,418.12
  5. Step 5: Solve for x
    x = 764,198,667,292,418.12/25,753,985.20
  6. Step 6: Final answer
    x = 29,673,025.80

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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.