Finding the Fourth Proportional to 19,765,556.16, 29,609,721.12 and 13,616,452.80
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Solution
The fourth proportional to 19,765,556.16, 29,609,721.12 and 13,616,452.80 is: 20,398,078.70
Step by Step Solution
- Step 1: Write the proportion equation
19,765,556.16 : 29,609,721.12 = 13,616,452.80 : x - Step 2: Convert to fraction form
19,765,556.16/29,609,721.12 = 13,616,452.80/x - Step 3: Cross multiply
19,765,556.16x = 29,609,721.12 × 13,616,452.80 - Step 4: Simplify right side
19,765,556.16x = 403,179,370,051,643.19 - Step 5: Solve for x
x = 403,179,370,051,643.19/19,765,556.16 - Step 6: Final answer
x = 20,398,078.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.