Finding the Fourth Proportional to 7,243,344,163.20, 10,865,016,244.80 and 2,585,370,086.40
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Solution
The fourth proportional to 7,243,344,163.20, 10,865,016,244.80 and 2,585,370,086.40 is: 3,878,055,129.60
Step by Step Solution
- Step 1: Write the proportion equation
7,243,344,163.20 : 10,865,016,244.80 = 2,585,370,086.40 : x - Step 2: Convert to fraction form
7,243,344,163.20/10,865,016,244.80 = 2,585,370,086.40/x - Step 3: Cross multiply
7,243,344,163.20x = 10,865,016,244.80 × 2,585,370,086.40 - Step 4: Simplify right side
7,243,344,163.20x = 28,090,087,987,555,979,264 - Step 5: Solve for x
x = 28,090,087,987,555,979,264/7,243,344,163.20 - Step 6: Final answer
x = 3,878,055,129.60
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Double scale
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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.