Finding the Fourth Proportional to 1,120,327,452.81, 1,546,054,062 and 618,537,206.97
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Solution
The fourth proportional to 1,120,327,452.81, 1,546,054,062 and 618,537,206.97 is: 853,582,547.62
Step by Step Solution
- Step 1: Write the proportion equation
1,120,327,452.81 : 1,546,054,062 = 618,537,206.97 : x - Step 2: Convert to fraction form
1,120,327,452.81/1,546,054,062 = 618,537,206.97/x - Step 3: Cross multiply
1,120,327,452.81x = 1,546,054,062 × 618,537,206.97 - Step 4: Simplify right side
1,120,327,452.81x = 956,291,961,334,103,296 - Step 5: Solve for x
x = 956,291,961,334,103,296/1,120,327,452.81 - Step 6: Final answer
x = 853,582,547.62
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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.