Finding the Fourth Proportional to 3,658,491,171.44, 5,048,763,733.70 and 1,987,768,213.28
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Solution
The fourth proportional to 3,658,491,171.44, 5,048,763,733.70 and 1,987,768,213.28 is: 2,743,145,082.47
Step by Step Solution
- Step 1: Write the proportion equation
3,658,491,171.44 : 5,048,763,733.70 = 1,987,768,213.28 : x - Step 2: Convert to fraction form
3,658,491,171.44/5,048,763,733.70 = 1,987,768,213.28/x - Step 3: Cross multiply
3,658,491,171.44x = 5,048,763,733.70 × 1,987,768,213.28 - Step 4: Simplify right side
3,658,491,171.44x = 10,035,772,066,209,710,080 - Step 5: Solve for x
x = 10,035,772,066,209,710,080/3,658,491,171.44 - Step 6: Final answer
x = 2,743,145,082.47
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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.