Finding the Fourth Proportional to 664,330,101.54, 916,757,778.32 and 366,965,943.68
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Solution
The fourth proportional to 664,330,101.54, 916,757,778.32 and 366,965,943.68 is: 506,403,190.92
Step by Step Solution
- Step 1: Write the proportion equation
664,330,101.54 : 916,757,778.32 = 366,965,943.68 : x - Step 2: Convert to fraction form
664,330,101.54/916,757,778.32 = 366,965,943.68/x - Step 3: Cross multiply
664,330,101.54x = 916,757,778.32 × 366,965,943.68 - Step 4: Simplify right side
664,330,101.54x = 336,418,883,247,179,072 - Step 5: Solve for x
x = 336,418,883,247,179,072/664,330,101.54 - Step 6: Final answer
x = 506,403,190.92
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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.