Finding the Fourth Proportional to 966,157,305.30, 1,449,235,957.95 and 816,503,519.70
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Solution
The fourth proportional to 966,157,305.30, 1,449,235,957.95 and 816,503,519.70 is: 1,224,755,279.55
Step by Step Solution
- Step 1: Write the proportion equation
966,157,305.30 : 1,449,235,957.95 = 816,503,519.70 : x - Step 2: Convert to fraction form
966,157,305.30/1,449,235,957.95 = 816,503,519.70/x - Step 3: Cross multiply
966,157,305.30x = 1,449,235,957.95 × 816,503,519.70 - Step 4: Simplify right side
966,157,305.30x = 1,183,306,260,541,976,320 - Step 5: Solve for x
x = 1,183,306,260,541,976,320/966,157,305.30 - Step 6: Final answer
x = 1,224,755,279.55
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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.