Home / 499,419,734.32-689,194,156.80-276,401,848.96

Finding the Fourth Proportional to 499,419,734.32, 689,194,156.80 and 276,401,848.96

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Solution

The fourth proportional to 499,419,734.32, 689,194,156.80 and 276,401,848.96 is: 381,431,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,419,734.32 : 689,194,156.80 = 276,401,848.96 : x
  2. Step 2: Convert to fraction form
    499,419,734.32/689,194,156.80 = 276,401,848.96/x
  3. Step 3: Cross multiply
    499,419,734.32x = 689,194,156.80 × 276,401,848.96
  4. Step 4: Simplify right side
    499,419,734.32x = 190,494,539,231,948,128
  5. Step 5: Solve for x
    x = 190,494,539,231,948,128/499,419,734.32
  6. Step 6: Final answer
    x = 381,431,741.96

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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.