Home / 919,664,530.60-1,379,496,795.90-828,965,266.60

Finding the Fourth Proportional to 919,664,530.60, 1,379,496,795.90 and 828,965,266.60

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Solution

The fourth proportional to 919,664,530.60, 1,379,496,795.90 and 828,965,266.60 is: 1,243,447,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,664,530.60 : 1,379,496,795.90 = 828,965,266.60 : x
  2. Step 2: Convert to fraction form
    919,664,530.60/1,379,496,795.90 = 828,965,266.60/x
  3. Step 3: Cross multiply
    919,664,530.60x = 1,379,496,795.90 × 828,965,266.60
  4. Step 4: Simplify right side
    919,664,530.60x = 1,143,554,929,187,089,408
  5. Step 5: Solve for x
    x = 1,143,554,929,187,089,408/919,664,530.60
  6. Step 6: Final answer
    x = 1,243,447,899.90

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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.