Finding the Fourth Proportional to 848,336,718.80, 1,269,635,296.80 and 745,024,588.40
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Solution
The fourth proportional to 848,336,718.80, 1,269,635,296.80 and 745,024,588.40 is: 1,115,016,588.88
Step by Step Solution
- Step 1: Write the proportion equation
848,336,718.80 : 1,269,635,296.80 = 745,024,588.40 : x - Step 2: Convert to fraction form
848,336,718.80/1,269,635,296.80 = 745,024,588.40/x - Step 3: Cross multiply
848,336,718.80x = 1,269,635,296.80 × 745,024,588.40 - Step 4: Simplify right side
848,336,718.80x = 945,909,514,416,531,712 - Step 5: Solve for x
x = 945,909,514,416,531,712/848,336,718.80 - Step 6: Final answer
x = 1,115,016,588.88
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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.