Finding the Fourth Proportional to 892,296,552.80, 1,338,444,829.20 and 278,879,794.40
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Solution
The fourth proportional to 892,296,552.80, 1,338,444,829.20 and 278,879,794.40 is: 418,319,691.60
Step by Step Solution
- Step 1: Write the proportion equation
892,296,552.80 : 1,338,444,829.20 = 278,879,794.40 : x - Step 2: Convert to fraction form
892,296,552.80/1,338,444,829.20 = 278,879,794.40/x - Step 3: Cross multiply
892,296,552.80x = 1,338,444,829.20 × 278,879,794.40 - Step 4: Simplify right side
892,296,552.80x = 373,265,218,783,039,104 - Step 5: Solve for x
x = 373,265,218,783,039,104/892,296,552.80 - Step 6: Final answer
x = 418,319,691.60
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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.