Home / 327,245,000,518.32-451,909,993,185.72-309,416,897,978.16

Finding the Fourth Proportional to 327,245,000,518.32, 451,909,993,185.72 and 309,416,897,978.16

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Solution

The fourth proportional to 327,245,000,518.32, 451,909,993,185.72 and 309,416,897,978.16 is: 427,290,219,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,245,000,518.32 : 451,909,993,185.72 = 309,416,897,978.16 : x
  2. Step 2: Convert to fraction form
    327,245,000,518.32/451,909,993,185.72 = 309,416,897,978.16/x
  3. Step 3: Cross multiply
    327,245,000,518.32x = 451,909,993,185.72 × 309,416,897,978.16
  4. Step 4: Simplify right side
    327,245,000,518.32x = 139,828,588,256,856,891,195,392
  5. Step 5: Solve for x
    x = 139,828,588,256,856,891,195,392/327,245,000,518.32
  6. Step 6: Final answer
    x = 427,290,219,973.98

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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.