Home / 1,328,486,997.89-1,991,959,545.48-628,973,261.28

Finding the Fourth Proportional to 1,328,486,997.89, 1,991,959,545.48 and 628,973,261.28

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Solution

The fourth proportional to 1,328,486,997.89, 1,991,959,545.48 and 628,973,261.28 is: 943,094,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,486,997.89 : 1,991,959,545.48 = 628,973,261.28 : x
  2. Step 2: Convert to fraction form
    1,328,486,997.89/1,991,959,545.48 = 628,973,261.28/x
  3. Step 3: Cross multiply
    1,328,486,997.89x = 1,991,959,545.48 × 628,973,261.28
  4. Step 4: Simplify right side
    1,328,486,997.89x = 1,252,889,291,658,382,080
  5. Step 5: Solve for x
    x = 1,252,889,291,658,382,080/1,328,486,997.89
  6. Step 6: Final answer
    x = 943,094,884.37

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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.