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Finding the Fourth Proportional to 1,090,913,787.02, 1,505,015,348.73 and 805,489,357.43

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Solution

The fourth proportional to 1,090,913,787.02, 1,505,015,348.73 and 805,489,357.43 is: 1,111,246,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,913,787.02 : 1,505,015,348.73 = 805,489,357.43 : x
  2. Step 2: Convert to fraction form
    1,090,913,787.02/1,505,015,348.73 = 805,489,357.43/x
  3. Step 3: Cross multiply
    1,090,913,787.02x = 1,505,015,348.73 × 805,489,357.43
  4. Step 4: Simplify right side
    1,090,913,787.02x = 1,212,273,846,170,814,976
  5. Step 5: Solve for x
    x = 1,212,273,846,170,814,976/1,090,913,787.02
  6. Step 6: Final answer
    x = 1,111,246,242.00

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1.5x scale

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.