Finding the Fourth Proportional to 20,790,168.84, 31,163,262.18 and 7,830,712.14
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Solution
The fourth proportional to 20,790,168.84, 31,163,262.18 and 7,830,712.14 is: 11,737,785.17
Step by Step Solution
- Step 1: Write the proportion equation
20,790,168.84 : 31,163,262.18 = 7,830,712.14 : x - Step 2: Convert to fraction form
20,790,168.84/31,163,262.18 = 7,830,712.14/x - Step 3: Cross multiply
20,790,168.84x = 31,163,262.18 × 7,830,712.14 - Step 4: Simplify right side
20,790,168.84x = 244,030,535,474,928.84 - Step 5: Solve for x
x = 244,030,535,474,928.84/20,790,168.84 - Step 6: Final answer
x = 11,737,785.17
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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.