Home / 1,288,324,979.28-1,935,396,536.20-764,037,956.19

Finding the Fourth Proportional to 1,288,324,979.28, 1,935,396,536.20 and 764,037,956.19

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Solution

The fourth proportional to 1,288,324,979.28, 1,935,396,536.20 and 764,037,956.19 is: 1,147,782,149.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,324,979.28 : 1,935,396,536.20 = 764,037,956.19 : x
  2. Step 2: Convert to fraction form
    1,288,324,979.28/1,935,396,536.20 = 764,037,956.19/x
  3. Step 3: Cross multiply
    1,288,324,979.28x = 1,935,396,536.20 × 764,037,956.19
  4. Step 4: Simplify right side
    1,288,324,979.28x = 1,478,716,413,935,453,440
  5. Step 5: Solve for x
    x = 1,478,716,413,935,453,440/1,288,324,979.28
  6. Step 6: Final answer
    x = 1,147,782,149.47

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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.