Finding the Fourth Proportional to 884,970,218.09, 1,221,258,716.45 and 488,493,104.19
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Solution
The fourth proportional to 884,970,218.09, 1,221,258,716.45 and 488,493,104.19 is: 674,120,381.93
Step by Step Solution
- Step 1: Write the proportion equation
884,970,218.09 : 1,221,258,716.45 = 488,493,104.19 : x - Step 2: Convert to fraction form
884,970,218.09/1,221,258,716.45 = 488,493,104.19/x - Step 3: Cross multiply
884,970,218.09x = 1,221,258,716.45 × 488,493,104.19 - Step 4: Simplify right side
884,970,218.09x = 596,576,461,415,313,024 - Step 5: Solve for x
x = 596,576,461,415,313,024/884,970,218.09 - Step 6: Final answer
x = 674,120,381.93
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Double scale
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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.