Home / 800,317,101.60-1,200,475,652.40-664,268,205.60

Finding the Fourth Proportional to 800,317,101.60, 1,200,475,652.40 and 664,268,205.60

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Solution

The fourth proportional to 800,317,101.60, 1,200,475,652.40 and 664,268,205.60 is: 996,402,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,317,101.60 : 1,200,475,652.40 = 664,268,205.60 : x
  2. Step 2: Convert to fraction form
    800,317,101.60/1,200,475,652.40 = 664,268,205.60/x
  3. Step 3: Cross multiply
    800,317,101.60x = 1,200,475,652.40 × 664,268,205.60
  4. Step 4: Simplify right side
    800,317,101.60x = 797,437,807,486,237,440
  5. Step 5: Solve for x
    x = 797,437,807,486,237,440/800,317,101.60
  6. Step 6: Final answer
    x = 996,402,308.40

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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.