Finding the Fourth Proportional to 797,328,014.40, 1,195,992,021.60 and 489,622,363.20
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Solution
The fourth proportional to 797,328,014.40, 1,195,992,021.60 and 489,622,363.20 is: 734,433,544.80
Step by Step Solution
- Step 1: Write the proportion equation
797,328,014.40 : 1,195,992,021.60 = 489,622,363.20 : x - Step 2: Convert to fraction form
797,328,014.40/1,195,992,021.60 = 489,622,363.20/x - Step 3: Cross multiply
797,328,014.40x = 1,195,992,021.60 × 489,622,363.20 - Step 4: Simplify right side
797,328,014.40x = 585,584,439,984,137,344 - Step 5: Solve for x
x = 585,584,439,984,137,344/797,328,014.40 - Step 6: Final answer
x = 734,433,544.80
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1.5x scale
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.