Finding the Fourth Proportional to 1,090,496,951.70, 1,635,745,427.55 and 918,310,067.70
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Solution
The fourth proportional to 1,090,496,951.70, 1,635,745,427.55 and 918,310,067.70 is: 1,377,465,101.55
Step by Step Solution
- Step 1: Write the proportion equation
1,090,496,951.70 : 1,635,745,427.55 = 918,310,067.70 : x - Step 2: Convert to fraction form
1,090,496,951.70/1,635,745,427.55 = 918,310,067.70/x - Step 3: Cross multiply
1,090,496,951.70x = 1,635,745,427.55 × 918,310,067.70 - Step 4: Simplify right side
1,090,496,951.70x = 1,502,121,494,313,405,952 - Step 5: Solve for x
x = 1,502,121,494,313,405,952/1,090,496,951.70 - Step 6: Final answer
x = 1,377,465,101.55
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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.