Home / 785,377,163.60-1,178,065,745.40-664,444,811.60

Finding the Fourth Proportional to 785,377,163.60, 1,178,065,745.40 and 664,444,811.60

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Solution

The fourth proportional to 785,377,163.60, 1,178,065,745.40 and 664,444,811.60 is: 996,667,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,377,163.60 : 1,178,065,745.40 = 664,444,811.60 : x
  2. Step 2: Convert to fraction form
    785,377,163.60/1,178,065,745.40 = 664,444,811.60/x
  3. Step 3: Cross multiply
    785,377,163.60x = 1,178,065,745.40 × 664,444,811.60
  4. Step 4: Simplify right side
    785,377,163.60x = 782,759,672,254,716,672
  5. Step 5: Solve for x
    x = 782,759,672,254,716,672/785,377,163.60
  6. Step 6: Final answer
    x = 996,667,217.40

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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.