Home / 2,659,396,099.40-3,989,094,149.10-818,909,628.20

Finding the Fourth Proportional to 2,659,396,099.40, 3,989,094,149.10 and 818,909,628.20

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Solution

The fourth proportional to 2,659,396,099.40, 3,989,094,149.10 and 818,909,628.20 is: 1,228,364,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,396,099.40 : 3,989,094,149.10 = 818,909,628.20 : x
  2. Step 2: Convert to fraction form
    2,659,396,099.40/3,989,094,149.10 = 818,909,628.20/x
  3. Step 3: Cross multiply
    2,659,396,099.40x = 3,989,094,149.10 × 818,909,628.20
  4. Step 4: Simplify right side
    2,659,396,099.40x = 3,266,707,606,494,276,608
  5. Step 5: Solve for x
    x = 3,266,707,606,494,276,608/2,659,396,099.40
  6. Step 6: Final answer
    x = 1,228,364,442.30

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Double scale
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1.5x scale

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.