Finding the Fourth Proportional to 7,554,369,866.40, 11,331,554,799.60 and 2,646,405,943.20
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Solution
The fourth proportional to 7,554,369,866.40, 11,331,554,799.60 and 2,646,405,943.20 is: 3,969,608,914.80
Step by Step Solution
- Step 1: Write the proportion equation
7,554,369,866.40 : 11,331,554,799.60 = 2,646,405,943.20 : x - Step 2: Convert to fraction form
7,554,369,866.40/11,331,554,799.60 = 2,646,405,943.20/x - Step 3: Cross multiply
7,554,369,866.40x = 11,331,554,799.60 × 2,646,405,943.20 - Step 4: Simplify right side
7,554,369,866.40x = 29,987,893,967,357,923,328 - Step 5: Solve for x
x = 29,987,893,967,357,923,328/7,554,369,866.40 - Step 6: Final answer
x = 3,969,608,914.80
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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.