Finding the Fourth Proportional to 5,349,553,716.53, 7,382,473,040.13 and 2,938,459,149.74
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Solution
The fourth proportional to 5,349,553,716.53, 7,382,473,040.13 and 2,938,459,149.74 is: 4,055,122,464.79
Step by Step Solution
- Step 1: Write the proportion equation
5,349,553,716.53 : 7,382,473,040.13 = 2,938,459,149.74 : x - Step 2: Convert to fraction form
5,349,553,716.53/7,382,473,040.13 = 2,938,459,149.74/x - Step 3: Cross multiply
5,349,553,716.53x = 7,382,473,040.13 × 2,938,459,149.74 - Step 4: Simplify right side
5,349,553,716.53x = 21,693,095,452,478,869,504 - Step 5: Solve for x
x = 21,693,095,452,478,869,504/5,349,553,716.53 - Step 6: Final answer
x = 4,055,122,464.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.