Finding the Fourth Proportional to 966,157,324.80, 1,449,235,987.20 and 816,503,539.20
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Solution
The fourth proportional to 966,157,324.80, 1,449,235,987.20 and 816,503,539.20 is: 1,224,755,308.80
Step by Step Solution
- Step 1: Write the proportion equation
966,157,324.80 : 1,449,235,987.20 = 816,503,539.20 : x - Step 2: Convert to fraction form
966,157,324.80/1,449,235,987.20 = 816,503,539.20/x - Step 3: Cross multiply
966,157,324.80x = 1,449,235,987.20 × 816,503,539.20 - Step 4: Simplify right side
966,157,324.80x = 1,183,306,312,684,805,888 - Step 5: Solve for x
x = 1,183,306,312,684,805,888/966,157,324.80 - Step 6: Final answer
x = 1,224,755,308.80
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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.