Finding the Fourth Proportional to 11,577,700.38, 15,977,759.91 and 6,420,754.62
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Solution
The fourth proportional to 11,577,700.38, 15,977,759.91 and 6,420,754.62 is: 8,860,937.18
Step by Step Solution
- Step 1: Write the proportion equation
11,577,700.38 : 15,977,759.91 = 6,420,754.62 : x - Step 2: Convert to fraction form
11,577,700.38/15,977,759.91 = 6,420,754.62/x - Step 3: Cross multiply
11,577,700.38x = 15,977,759.91 × 6,420,754.62 - Step 4: Simplify right side
11,577,700.38x = 102,589,275,759,383.28 - Step 5: Solve for x
x = 102,589,275,759,383.28/11,577,700.38 - Step 6: Final answer
x = 8,860,937.18
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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.