Finding the Fourth Proportional to 28,821,741.14, 39,770,074.70 and 17,216,841.18
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Solution
The fourth proportional to 28,821,741.14, 39,770,074.70 and 17,216,841.18 is: 23,756,894.37
Step by Step Solution
- Step 1: Write the proportion equation
28,821,741.14 : 39,770,074.70 = 17,216,841.18 : x - Step 2: Convert to fraction form
28,821,741.14/39,770,074.70 = 17,216,841.18/x - Step 3: Cross multiply
28,821,741.14x = 39,770,074.70 × 17,216,841.18 - Step 4: Simplify right side
28,821,741.14x = 684,715,059,826,636.12 - Step 5: Solve for x
x = 684,715,059,826,636.12/28,821,741.14 - Step 6: Final answer
x = 23,756,894.37
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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.