Finding the Fourth Proportional to 805,101,295.70, 1,207,651,943.55 and 345,085,966.10
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Solution
The fourth proportional to 805,101,295.70, 1,207,651,943.55 and 345,085,966.10 is: 517,628,949.15
Step by Step Solution
- Step 1: Write the proportion equation
805,101,295.70 : 1,207,651,943.55 = 345,085,966.10 : x - Step 2: Convert to fraction form
805,101,295.70/1,207,651,943.55 = 345,085,966.10/x - Step 3: Cross multiply
805,101,295.70x = 1,207,651,943.55 × 345,085,966.10 - Step 4: Simplify right side
805,101,295.70x = 416,743,737,652,494,400 - Step 5: Solve for x
x = 416,743,737,652,494,400/805,101,295.70 - Step 6: Final answer
x = 517,628,949.15
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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.