Home / 800,339,930.10-1,200,509,895.15-664,291,034.10

Finding the Fourth Proportional to 800,339,930.10, 1,200,509,895.15 and 664,291,034.10

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Solution

The fourth proportional to 800,339,930.10, 1,200,509,895.15 and 664,291,034.10 is: 996,436,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,339,930.10 : 1,200,509,895.15 = 664,291,034.10 : x
  2. Step 2: Convert to fraction form
    800,339,930.10/1,200,509,895.15 = 664,291,034.10/x
  3. Step 3: Cross multiply
    800,339,930.10x = 1,200,509,895.15 × 664,291,034.10
  4. Step 4: Simplify right side
    800,339,930.10x = 797,487,959,696,476,160
  5. Step 5: Solve for x
    x = 797,487,959,696,476,160/800,339,930.10
  6. Step 6: Final answer
    x = 996,436,551.15

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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.