Home / 20,146,216.80-30,219,325.20-7,362,472.80

Finding the Fourth Proportional to 20,146,216.80, 30,219,325.20 and 7,362,472.80

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Solution

The fourth proportional to 20,146,216.80, 30,219,325.20 and 7,362,472.80 is: 11,043,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,216.80 : 30,219,325.20 = 7,362,472.80 : x
  2. Step 2: Convert to fraction form
    20,146,216.80/30,219,325.20 = 7,362,472.80/x
  3. Step 3: Cross multiply
    20,146,216.80x = 30,219,325.20 × 7,362,472.80
  4. Step 4: Simplify right side
    20,146,216.80x = 222,488,959,819,354.56
  5. Step 5: Solve for x
    x = 222,488,959,819,354.56/20,146,216.80
  6. Step 6: Final answer
    x = 11,043,709.20

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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.