Finding the Fourth Proportional to 1,107,813,775.80, 1,661,720,663.70 and 534,504,847.80
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Solution
The fourth proportional to 1,107,813,775.80, 1,661,720,663.70 and 534,504,847.80 is: 801,757,271.70
Step by Step Solution
- Step 1: Write the proportion equation
1,107,813,775.80 : 1,661,720,663.70 = 534,504,847.80 : x - Step 2: Convert to fraction form
1,107,813,775.80/1,661,720,663.70 = 534,504,847.80/x - Step 3: Cross multiply
1,107,813,775.80x = 1,661,720,663.70 × 534,504,847.80 - Step 4: Simplify right side
1,107,813,775.80x = 888,197,750,437,083,520 - Step 5: Solve for x
x = 888,197,750,437,083,520/1,107,813,775.80 - Step 6: Final answer
x = 801,757,271.70
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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.