Finding the Fourth Proportional to 288,194,235.68, 397,707,519.48 and 156,035,216
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Solution
The fourth proportional to 288,194,235.68, 397,707,519.48 and 156,035,216 is: 215,328,313.42
Step by Step Solution
- Step 1: Write the proportion equation
288,194,235.68 : 397,707,519.48 = 156,035,216 : x - Step 2: Convert to fraction form
288,194,235.68/397,707,519.48 = 156,035,216/x - Step 3: Cross multiply
288,194,235.68x = 397,707,519.48 × 156,035,216 - Step 4: Simplify right side
288,194,235.68x = 62,056,378,706,886,008 - Step 5: Solve for x
x = 62,056,378,706,886,008/288,194,235.68 - Step 6: Final answer
x = 215,328,313.42
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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.