Home / 5,318,783,994.60-7,978,175,991.90-2,556,991,405.80

Finding the Fourth Proportional to 5,318,783,994.60, 7,978,175,991.90 and 2,556,991,405.80

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Solution

The fourth proportional to 5,318,783,994.60, 7,978,175,991.90 and 2,556,991,405.80 is: 3,835,487,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318,783,994.60 : 7,978,175,991.90 = 2,556,991,405.80 : x
  2. Step 2: Convert to fraction form
    5,318,783,994.60/7,978,175,991.90 = 2,556,991,405.80/x
  3. Step 3: Cross multiply
    5,318,783,994.60x = 7,978,175,991.90 × 2,556,991,405.80
  4. Step 4: Simplify right side
    5,318,783,994.60x = 20,400,127,445,248,192,512
  5. Step 5: Solve for x
    x = 20,400,127,445,248,192,512/5,318,783,994.60
  6. Step 6: Final answer
    x = 3,835,487,108.70

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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.