Home / 1,328,486,998.14-1,991,959,545.86-628,973,261.53

Finding the Fourth Proportional to 1,328,486,998.14, 1,991,959,545.86 and 628,973,261.53

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Solution

The fourth proportional to 1,328,486,998.14, 1,991,959,545.86 and 628,973,261.53 is: 943,094,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,486,998.14 : 1,991,959,545.86 = 628,973,261.53 : x
  2. Step 2: Convert to fraction form
    1,328,486,998.14/1,991,959,545.86 = 628,973,261.53/x
  3. Step 3: Cross multiply
    1,328,486,998.14x = 1,991,959,545.86 × 628,973,261.53
  4. Step 4: Simplify right side
    1,328,486,998.14x = 1,252,889,292,395,381,760
  5. Step 5: Solve for x
    x = 1,252,889,292,395,381,760/1,328,486,998.14
  6. Step 6: Final answer
    x = 943,094,884.74

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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.