Home / 445,822,801.20-668,734,201.80-413,537,760.45

Finding the Fourth Proportional to 445,822,801.20, 668,734,201.80 and 413,537,760.45

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Solution

The fourth proportional to 445,822,801.20, 668,734,201.80 and 413,537,760.45 is: 620,306,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,822,801.20 : 668,734,201.80 = 413,537,760.45 : x
  2. Step 2: Convert to fraction form
    445,822,801.20/668,734,201.80 = 413,537,760.45/x
  3. Step 3: Cross multiply
    445,822,801.20x = 668,734,201.80 × 413,537,760.45
  4. Step 4: Simplify right side
    445,822,801.20x = 276,546,844,148,690,336
  5. Step 5: Solve for x
    x = 276,546,844,148,690,336/445,822,801.20
  6. Step 6: Final answer
    x = 620,306,640.68

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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.