Finding the Fourth Proportional to 848,336,720.80, 1,269,635,299.80 and 745,024,590.40
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Solution
The fourth proportional to 848,336,720.80, 1,269,635,299.80 and 745,024,590.40 is: 1,115,016,591.88
Step by Step Solution
- Step 1: Write the proportion equation
848,336,720.80 : 1,269,635,299.80 = 745,024,590.40 : x - Step 2: Convert to fraction form
848,336,720.80/1,269,635,299.80 = 745,024,590.40/x - Step 3: Cross multiply
848,336,720.80x = 1,269,635,299.80 × 745,024,590.40 - Step 4: Simplify right side
848,336,720.80x = 945,909,519,190,876,160 - Step 5: Solve for x
x = 945,909,519,190,876,160/848,336,720.80 - Step 6: Final answer
x = 1,115,016,591.88
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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.