Home / 128,308,227.20-192,462,340.80-36,191,787.20

Finding the Fourth Proportional to 128,308,227.20, 192,462,340.80 and 36,191,787.20

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Solution

The fourth proportional to 128,308,227.20, 192,462,340.80 and 36,191,787.20 is: 54,287,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,308,227.20 : 192,462,340.80 = 36,191,787.20 : x
  2. Step 2: Convert to fraction form
    128,308,227.20/192,462,340.80 = 36,191,787.20/x
  3. Step 3: Cross multiply
    128,308,227.20x = 192,462,340.80 × 36,191,787.20
  4. Step 4: Simplify right side
    128,308,227.20x = 6,965,556,082,247,479
  5. Step 5: Solve for x
    x = 6,965,556,082,247,479/128,308,227.20
  6. Step 6: Final answer
    x = 54,287,680.80

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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.