Home / 1,090,716,203.56-1,505,190,044.94-620,817,519.64

Finding the Fourth Proportional to 1,090,716,203.56, 1,505,190,044.94 and 620,817,519.64

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Solution

The fourth proportional to 1,090,716,203.56, 1,505,190,044.94 and 620,817,519.64 is: 856,729,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,716,203.56 : 1,505,190,044.94 = 620,817,519.64 : x
  2. Step 2: Convert to fraction form
    1,090,716,203.56/1,505,190,044.94 = 620,817,519.64/x
  3. Step 3: Cross multiply
    1,090,716,203.56x = 1,505,190,044.94 × 620,817,519.64
  4. Step 4: Simplify right side
    1,090,716,203.56x = 934,448,350,286,470,912
  5. Step 5: Solve for x
    x = 934,448,350,286,470,912/1,090,716,203.56
  6. Step 6: Final answer
    x = 856,729,135.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.