Home / 1,264,618,031.37-1,745,355,428.86-728,667,049.18

Finding the Fourth Proportional to 1,264,618,031.37, 1,745,355,428.86 and 728,667,049.18

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Solution

The fourth proportional to 1,264,618,031.37, 1,745,355,428.86 and 728,667,049.18 is: 1,005,665,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,618,031.37 : 1,745,355,428.86 = 728,667,049.18 : x
  2. Step 2: Convert to fraction form
    1,264,618,031.37/1,745,355,428.86 = 728,667,049.18/x
  3. Step 3: Cross multiply
    1,264,618,031.37x = 1,745,355,428.86 × 728,667,049.18
  4. Step 4: Simplify right side
    1,264,618,031.37x = 1,271,782,990,116,100,096
  5. Step 5: Solve for x
    x = 1,271,782,990,116,100,096/1,264,618,031.37
  6. Step 6: Final answer
    x = 1,005,665,709.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.