Home / 919,660,906.60-1,379,491,359.90-828,961,642.60

Finding the Fourth Proportional to 919,660,906.60, 1,379,491,359.90 and 828,961,642.60

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Solution

The fourth proportional to 919,660,906.60, 1,379,491,359.90 and 828,961,642.60 is: 1,243,442,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,660,906.60 : 1,379,491,359.90 = 828,961,642.60 : x
  2. Step 2: Convert to fraction form
    919,660,906.60/1,379,491,359.90 = 828,961,642.60/x
  3. Step 3: Cross multiply
    919,660,906.60x = 1,379,491,359.90 × 828,961,642.60
  4. Step 4: Simplify right side
    919,660,906.60x = 1,143,545,423,655,211,904
  5. Step 5: Solve for x
    x = 1,143,545,423,655,211,904/919,660,906.60
  6. Step 6: Final answer
    x = 1,243,442,463.90

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1.5x scale

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.