Home / 446,202,187.20-669,303,280.80-415,591,185.60

Finding the Fourth Proportional to 446,202,187.20, 669,303,280.80 and 415,591,185.60

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Solution

The fourth proportional to 446,202,187.20, 669,303,280.80 and 415,591,185.60 is: 623,386,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,202,187.20 : 669,303,280.80 = 415,591,185.60 : x
  2. Step 2: Convert to fraction form
    446,202,187.20/669,303,280.80 = 415,591,185.60/x
  3. Step 3: Cross multiply
    446,202,187.20x = 669,303,280.80 × 415,591,185.60
  4. Step 4: Simplify right side
    446,202,187.20x = 278,156,543,993,641,728
  5. Step 5: Solve for x
    x = 278,156,543,993,641,728/446,202,187.20
  6. Step 6: Final answer
    x = 623,386,778.40

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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.