Finding the Fourth Proportional to 28,743,747.21, 39,565,689.62 and 25,066,175.49
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Solution
The fourth proportional to 28,743,747.21, 39,565,689.62 and 25,066,175.49 is: 34,503,522.18
Step by Step Solution
- Step 1: Write the proportion equation
28,743,747.21 : 39,565,689.62 = 25,066,175.49 : x - Step 2: Convert to fraction form
28,743,747.21/39,565,689.62 = 25,066,175.49/x - Step 3: Cross multiply
28,743,747.21x = 39,565,689.62 × 25,066,175.49 - Step 4: Simplify right side
28,743,747.21x = 991,760,519,272,460.50 - Step 5: Solve for x
x = 991,760,519,272,460.50/28,743,747.21 - Step 6: Final answer
x = 34,503,522.18
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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.