Finding the Fourth Proportional to 5,079,198,441.80, 7,619,778,812.92 and 1,931,168,286.84
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Solution
The fourth proportional to 5,079,198,441.80, 7,619,778,812.92 and 1,931,168,286.84 is: 2,897,125,474.59
Step by Step Solution
- Step 1: Write the proportion equation
5,079,198,441.80 : 7,619,778,812.92 = 1,931,168,286.84 : x - Step 2: Convert to fraction form
5,079,198,441.80/7,619,778,812.92 = 1,931,168,286.84/x - Step 3: Cross multiply
5,079,198,441.80x = 7,619,778,812.92 × 1,931,168,286.84 - Step 4: Simplify right side
5,079,198,441.80x = 14,715,075,196,246,444,032 - Step 5: Solve for x
x = 14,715,075,196,246,444,032/5,079,198,441.80 - Step 6: Final answer
x = 2,897,125,474.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.