Finding the Fourth Proportional to 664,330,097.54, 916,757,772.80 and 366,965,939.68
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Solution
The fourth proportional to 664,330,097.54, 916,757,772.80 and 366,965,939.68 is: 506,403,185.40
Step by Step Solution
- Step 1: Write the proportion equation
664,330,097.54 : 916,757,772.80 = 366,965,939.68 : x - Step 2: Convert to fraction form
664,330,097.54/916,757,772.80 = 366,965,939.68/x - Step 3: Cross multiply
664,330,097.54x = 916,757,772.80 × 366,965,939.68 - Step 4: Simplify right side
664,330,097.54x = 336,418,877,554,495,936 - Step 5: Solve for x
x = 336,418,877,554,495,936/664,330,097.54 - Step 6: Final answer
x = 506,403,185.40
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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.