Finding the Fourth Proportional to 1,278,302,372.23, 1,765,275,598.68 and 1,208,661,343.03
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Solution
The fourth proportional to 1,278,302,372.23, 1,765,275,598.68 and 1,208,661,343.03 is: 1,669,104,604.88
Step by Step Solution
- Step 1: Write the proportion equation
1,278,302,372.23 : 1,765,275,598.68 = 1,208,661,343.03 : x - Step 2: Convert to fraction form
1,278,302,372.23/1,765,275,598.68 = 1,208,661,343.03/x - Step 3: Cross multiply
1,278,302,372.23x = 1,765,275,598.68 × 1,208,661,343.03 - Step 4: Simplify right side
1,278,302,372.23x = 2,133,620,375,918,656,000 - Step 5: Solve for x
x = 2,133,620,375,918,656,000/1,278,302,372.23 - Step 6: Final answer
x = 1,669,104,604.88
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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.