Home / 1,212,787,821.30-1,819,181,906.55-292,664,163.30

Finding the Fourth Proportional to 1,212,787,821.30, 1,819,181,906.55 and 292,664,163.30

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Solution

The fourth proportional to 1,212,787,821.30, 1,819,181,906.55 and 292,664,163.30 is: 438,996,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,787,821.30 : 1,819,181,906.55 = 292,664,163.30 : x
  2. Step 2: Convert to fraction form
    1,212,787,821.30/1,819,181,906.55 = 292,664,163.30/x
  3. Step 3: Cross multiply
    1,212,787,821.30x = 1,819,181,906.55 × 292,664,163.30
  4. Step 4: Simplify right side
    1,212,787,821.30x = 532,409,350,570,954,560
  5. Step 5: Solve for x
    x = 532,409,350,570,954,560/1,212,787,821.30
  6. Step 6: Final answer
    x = 438,996,287.08

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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.