Finding the Fourth Proportional to 28,772,557.49, 43,121,635.15 and 21,527,245.19
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Solution
The fourth proportional to 28,772,557.49, 43,121,635.15 and 21,527,245.19 is: 32,263,034.43
Step by Step Solution
- Step 1: Write the proportion equation
28,772,557.49 : 43,121,635.15 = 21,527,245.19 : x - Step 2: Convert to fraction form
28,772,557.49/43,121,635.15 = 21,527,245.19/x - Step 3: Cross multiply
28,772,557.49x = 43,121,635.15 × 21,527,245.19 - Step 4: Simplify right side
28,772,557.49x = 928,290,012,867,772.50 - Step 5: Solve for x
x = 928,290,012,867,772.50/28,772,557.49 - Step 6: Final answer
x = 32,263,034.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.