Home / 405,892,241.60-609,068,680.28-219,143,697.74

Finding the Fourth Proportional to 405,892,241.60, 609,068,680.28 and 219,143,697.74

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Solution

The fourth proportional to 405,892,241.60, 609,068,680.28 and 219,143,697.74 is: 328,839,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,892,241.60 : 609,068,680.28 = 219,143,697.74 : x
  2. Step 2: Convert to fraction form
    405,892,241.60/609,068,680.28 = 219,143,697.74/x
  3. Step 3: Cross multiply
    405,892,241.60x = 609,068,680.28 × 219,143,697.74
  4. Step 4: Simplify right side
    405,892,241.60x = 133,473,562,770,039,968
  5. Step 5: Solve for x
    x = 133,473,562,770,039,968/405,892,241.60
  6. Step 6: Final answer
    x = 328,839,896.63

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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.