Home / 12,268,408,051.80-18,376,840,740.11-7,784,194,489.90

Finding the Fourth Proportional to 12,268,408,051.80, 18,376,840,740.11 and 7,784,194,489.90

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Solution

The fourth proportional to 12,268,408,051.80, 18,376,840,740.11 and 7,784,194,489.90 is: 11,659,940,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268,408,051.80 : 18,376,840,740.11 = 7,784,194,489.90 : x
  2. Step 2: Convert to fraction form
    12,268,408,051.80/18,376,840,740.11 = 7,784,194,489.90/x
  3. Step 3: Cross multiply
    12,268,408,051.80x = 18,376,840,740.11 × 7,784,194,489.90
  4. Step 4: Simplify right side
    12,268,408,051.80x = 143,048,902,430,934,089,728
  5. Step 5: Solve for x
    x = 143,048,902,430,934,089,728/12,268,408,051.80
  6. Step 6: Final answer
    x = 11,659,940,053.10

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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.