Home / 398,227,396.08-549,379,467.12-379,764,388.32

Finding the Fourth Proportional to 398,227,396.08, 549,379,467.12 and 379,764,388.32

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Solution

The fourth proportional to 398,227,396.08, 549,379,467.12 and 379,764,388.32 is: 523,908,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,227,396.08 : 549,379,467.12 = 379,764,388.32 : x
  2. Step 2: Convert to fraction form
    398,227,396.08/549,379,467.12 = 379,764,388.32/x
  3. Step 3: Cross multiply
    398,227,396.08x = 549,379,467.12 × 379,764,388.32
  4. Step 4: Simplify right side
    398,227,396.08x = 208,634,757,286,394,336
  5. Step 5: Solve for x
    x = 208,634,757,286,394,336/398,227,396.08
  6. Step 6: Final answer
    x = 523,908,599.31

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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.