Home / 1,440,764,919.20-2,161,274,990.24-405,634,768.22

Finding the Fourth Proportional to 1,440,764,919.20, 2,161,274,990.24 and 405,634,768.22

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Solution

The fourth proportional to 1,440,764,919.20, 2,161,274,990.24 and 405,634,768.22 is: 608,488,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,764,919.20 : 2,161,274,990.24 = 405,634,768.22 : x
  2. Step 2: Convert to fraction form
    1,440,764,919.20/2,161,274,990.24 = 405,634,768.22/x
  3. Step 3: Cross multiply
    1,440,764,919.20x = 2,161,274,990.24 × 405,634,768.22
  4. Step 4: Simplify right side
    1,440,764,919.20x = 876,688,279,715,892,736
  5. Step 5: Solve for x
    x = 876,688,279,715,892,736/1,440,764,919.20
  6. Step 6: Final answer
    x = 608,488,080.21

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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.