Home / 427,468,166.06-641,616,882.16-206,295,154.76

Finding the Fourth Proportional to 427,468,166.06, 641,616,882.16 and 206,295,154.76

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Solution

The fourth proportional to 427,468,166.06, 641,616,882.16 and 206,295,154.76 is: 309,642,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,468,166.06 : 641,616,882.16 = 206,295,154.76 : x
  2. Step 2: Convert to fraction form
    427,468,166.06/641,616,882.16 = 206,295,154.76/x
  3. Step 3: Cross multiply
    427,468,166.06x = 641,616,882.16 × 206,295,154.76
  4. Step 4: Simplify right side
    427,468,166.06x = 132,362,454,001,825,872
  5. Step 5: Solve for x
    x = 132,362,454,001,825,872/427,468,166.06
  6. Step 6: Final answer
    x = 309,642,833.11

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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.