Finding the Fourth Proportional to 288,186,353.97, 397,696,597.38 and 156,027,314.49
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Solution
The fourth proportional to 288,186,353.97, 397,696,597.38 and 156,027,314.49 is: 215,317,384.80
Step by Step Solution
- Step 1: Write the proportion equation
288,186,353.97 : 397,696,597.38 = 156,027,314.49 : x - Step 2: Convert to fraction form
288,186,353.97/397,696,597.38 = 156,027,314.49/x - Step 3: Cross multiply
288,186,353.97x = 397,696,597.38 × 156,027,314.49 - Step 4: Simplify right side
288,186,353.97x = 62,051,532,071,012,176 - Step 5: Solve for x
x = 62,051,532,071,012,176/288,186,353.97 - Step 6: Final answer
x = 215,317,384.80
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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.