Finding the Fourth Proportional to 936,966,843.66, 1,293,014,218.59 and 519,341,872.62
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Solution
The fourth proportional to 936,966,843.66, 1,293,014,218.59 and 519,341,872.62 is: 716,691,769.99
Step by Step Solution
- Step 1: Write the proportion equation
936,966,843.66 : 1,293,014,218.59 = 519,341,872.62 : x - Step 2: Convert to fraction form
936,966,843.66/1,293,014,218.59 = 519,341,872.62/x - Step 3: Cross multiply
936,966,843.66x = 1,293,014,218.59 × 519,341,872.62 - Step 4: Simplify right side
936,966,843.66x = 671,516,425,606,816,640 - Step 5: Solve for x
x = 671,516,425,606,816,640/936,966,843.66 - Step 6: Final answer
x = 716,691,769.99
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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.