Finding the Fourth Proportional to 72,578,515.70, 108,718,474.35 and 36,696,941.30
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Solution
The fourth proportional to 72,578,515.70, 108,718,474.35 and 36,696,941.30 is: 54,969,923.72
Step by Step Solution
- Step 1: Write the proportion equation
72,578,515.70 : 108,718,474.35 = 36,696,941.30 : x - Step 2: Convert to fraction form
72,578,515.70/108,718,474.35 = 36,696,941.30/x - Step 3: Cross multiply
72,578,515.70x = 108,718,474.35 × 36,696,941.30 - Step 4: Simplify right side
72,578,515.70x = 3,989,635,471,447,505 - Step 5: Solve for x
x = 3,989,635,471,447,505/72,578,515.70 - Step 6: Final answer
x = 54,969,923.72
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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.