Home / 1,288,324,977.28-1,935,396,533.20-764,037,954.19

Finding the Fourth Proportional to 1,288,324,977.28, 1,935,396,533.20 and 764,037,954.19

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Solution

The fourth proportional to 1,288,324,977.28, 1,935,396,533.20 and 764,037,954.19 is: 1,147,782,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,324,977.28 : 1,935,396,533.20 = 764,037,954.19 : x
  2. Step 2: Convert to fraction form
    1,288,324,977.28/1,935,396,533.20 = 764,037,954.19/x
  3. Step 3: Cross multiply
    1,288,324,977.28x = 1,935,396,533.20 × 764,037,954.19
  4. Step 4: Simplify right side
    1,288,324,977.28x = 1,478,716,407,772,546,560
  5. Step 5: Solve for x
    x = 1,478,716,407,772,546,560/1,288,324,977.28
  6. Step 6: Final answer
    x = 1,147,782,146.47

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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.