Home / 686,715,811.60-1,030,256,194.20-298,372,003.60

Finding the Fourth Proportional to 686,715,811.60, 1,030,256,194.20 and 298,372,003.60

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Solution

The fourth proportional to 686,715,811.60, 1,030,256,194.20 and 298,372,003.60 is: 447,637,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,715,811.60 : 1,030,256,194.20 = 298,372,003.60 : x
  2. Step 2: Convert to fraction form
    686,715,811.60/1,030,256,194.20 = 298,372,003.60/x
  3. Step 3: Cross multiply
    686,715,811.60x = 1,030,256,194.20 × 298,372,003.60
  4. Step 4: Simplify right side
    686,715,811.60x = 307,399,604,884,764,736
  5. Step 5: Solve for x
    x = 307,399,604,884,764,736/686,715,811.60
  6. Step 6: Final answer
    x = 447,637,289.97

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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.