Home / 252,407,366,697.25-378,634,324,964.62-82,427,846,561.67

Finding the Fourth Proportional to 252,407,366,697.25, 378,634,324,964.62 and 82,427,846,561.67

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Solution

The fourth proportional to 252,407,366,697.25, 378,634,324,964.62 and 82,427,846,561.67 is: 123,649,370,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,407,366,697.25 : 378,634,324,964.62 = 82,427,846,561.67 : x
  2. Step 2: Convert to fraction form
    252,407,366,697.25/378,634,324,964.62 = 82,427,846,561.67/x
  3. Step 3: Cross multiply
    252,407,366,697.25x = 378,634,324,964.62 × 82,427,846,561.67
  4. Step 4: Simplify right side
    252,407,366,697.25x = 31,210,012,041,163,298,570,240
  5. Step 5: Solve for x
    x = 31,210,012,041,163,298,570,240/252,407,366,697.25
  6. Step 6: Final answer
    x = 123,649,370,656.44

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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.