Home / 3,919,492,493.56-5,405,266,419.42-2,860,543,127.80

Finding the Fourth Proportional to 3,919,492,493.56, 5,405,266,419.42 and 2,860,543,127.80

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Solution

The fourth proportional to 3,919,492,493.56, 5,405,266,419.42 and 2,860,543,127.80 is: 3,944,897,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,492,493.56 : 5,405,266,419.42 = 2,860,543,127.80 : x
  2. Step 2: Convert to fraction form
    3,919,492,493.56/5,405,266,419.42 = 2,860,543,127.80/x
  3. Step 3: Cross multiply
    3,919,492,493.56x = 5,405,266,419.42 × 2,860,543,127.80
  4. Step 4: Simplify right side
    3,919,492,493.56x = 15,461,997,709,999,994,880
  5. Step 5: Solve for x
    x = 15,461,997,709,999,994,880/3,919,492,493.56
  6. Step 6: Final answer
    x = 3,944,897,900.79

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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.