Finding the Fourth Proportional to 129,585,441.60, 194,381,272.80 and 38,711,995.20
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Solution
The fourth proportional to 129,585,441.60, 194,381,272.80 and 38,711,995.20 is: 58,068,921.99
Step by Step Solution
- Step 1: Write the proportion equation
129,585,441.60 : 194,381,272.80 = 38,711,995.20 : x - Step 2: Convert to fraction form
129,585,441.60/194,381,272.80 = 38,711,995.20/x - Step 3: Cross multiply
129,585,441.60x = 194,381,272.80 × 38,711,995.20 - Step 4: Simplify right side
129,585,441.60x = 7,524,886,899,603,492 - Step 5: Solve for x
x = 7,524,886,899,603,492/129,585,441.60 - Step 6: Final answer
x = 58,068,921.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.