Finding the Fourth Proportional to 1,797,661,792.19, 2,696,492,688.29 and 505,197,280.19
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Solution
The fourth proportional to 1,797,661,792.19, 2,696,492,688.29 and 505,197,280.19 is: 757,795,920.29
Step by Step Solution
- Step 1: Write the proportion equation
1,797,661,792.19 : 2,696,492,688.29 = 505,197,280.19 : x - Step 2: Convert to fraction form
1,797,661,792.19/2,696,492,688.29 = 505,197,280.19/x - Step 3: Cross multiply
1,797,661,792.19x = 2,696,492,688.29 × 505,197,280.19 - Step 4: Simplify right side
1,797,661,792.19x = 1,362,260,772,173,803,520 - Step 5: Solve for x
x = 1,362,260,772,173,803,520/1,797,661,792.19 - Step 6: Final answer
x = 757,795,920.29
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Double scale
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Similar ratio
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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.