Home / 919,399,179.68-1,268,797,662.51-501,738,367.22

Finding the Fourth Proportional to 919,399,179.68, 1,268,797,662.51 and 501,738,367.22

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Solution

The fourth proportional to 919,399,179.68, 1,268,797,662.51 and 501,738,367.22 is: 692,413,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,399,179.68 : 1,268,797,662.51 = 501,738,367.22 : x
  2. Step 2: Convert to fraction form
    919,399,179.68/1,268,797,662.51 = 501,738,367.22/x
  3. Step 3: Cross multiply
    919,399,179.68x = 1,268,797,662.51 × 501,738,367.22
  4. Step 4: Simplify right side
    919,399,179.68x = 636,604,467,520,320,000
  5. Step 5: Solve for x
    x = 636,604,467,520,320,000/919,399,179.68
  6. Step 6: Final answer
    x = 692,413,569.20

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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.