Finding the Fourth Proportional to 326,414,851.20, 489,622,276.80 and 229,480,012.80
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Solution
The fourth proportional to 326,414,851.20, 489,622,276.80 and 229,480,012.80 is: 344,220,019.20
Step by Step Solution
- Step 1: Write the proportion equation
326,414,851.20 : 489,622,276.80 = 229,480,012.80 : x - Step 2: Convert to fraction form
326,414,851.20/489,622,276.80 = 229,480,012.80/x - Step 3: Cross multiply
326,414,851.20x = 489,622,276.80 × 229,480,012.80 - Step 4: Simplify right side
326,414,851.20x = 112,358,526,347,229,152 - Step 5: Solve for x
x = 112,358,526,347,229,152/326,414,851.20 - Step 6: Final answer
x = 344,220,019.20
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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.