Finding the Fourth Proportional to 880,590,916.92, 1,215,216,247.18 and 484,120,651.99
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Solution
The fourth proportional to 880,590,916.92, 1,215,216,247.18 and 484,120,651.99 is: 668,086,929.57
Step by Step Solution
- Step 1: Write the proportion equation
880,590,916.92 : 1,215,216,247.18 = 484,120,651.99 : x - Step 2: Convert to fraction form
880,590,916.92/1,215,216,247.18 = 484,120,651.99/x - Step 3: Cross multiply
880,590,916.92x = 1,215,216,247.18 × 484,120,651.99 - Step 4: Simplify right side
880,590,916.92x = 588,311,281,893,622,656 - Step 5: Solve for x
x = 588,311,281,893,622,656/880,590,916.92 - Step 6: Final answer
x = 668,086,929.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.