Finding the Fourth Proportional to 1,084,608,073.80, 1,626,912,110.70 and 347,676,553.80
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Solution
The fourth proportional to 1,084,608,073.80, 1,626,912,110.70 and 347,676,553.80 is: 521,514,830.70
Step by Step Solution
- Step 1: Write the proportion equation
1,084,608,073.80 : 1,626,912,110.70 = 347,676,553.80 : x - Step 2: Convert to fraction form
1,084,608,073.80/1,626,912,110.70 = 347,676,553.80/x - Step 3: Cross multiply
1,084,608,073.80x = 1,626,912,110.70 × 347,676,553.80 - Step 4: Simplify right side
1,084,608,073.80x = 565,639,195,983,660,160 - Step 5: Solve for x
x = 565,639,195,983,660,160/1,084,608,073.80 - Step 6: Final answer
x = 521,514,830.70
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Double scale
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Similar ratio
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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.