Home / 355,915,565.20-533,873,347.80-279,474,374.80

Finding the Fourth Proportional to 355,915,565.20, 533,873,347.80 and 279,474,374.80

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Solution

The fourth proportional to 355,915,565.20, 533,873,347.80 and 279,474,374.80 is: 419,211,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,915,565.20 : 533,873,347.80 = 279,474,374.80 : x
  2. Step 2: Convert to fraction form
    355,915,565.20/533,873,347.80 = 279,474,374.80/x
  3. Step 3: Cross multiply
    355,915,565.20x = 533,873,347.80 × 279,474,374.80
  4. Step 4: Simplify right side
    355,915,565.20x = 149,203,920,098,787,968
  5. Step 5: Solve for x
    x = 149,203,920,098,787,968/355,915,565.20
  6. Step 6: Final answer
    x = 419,211,562.20

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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.