Finding the Fourth Proportional to 3,626,865,647.80, 5,440,298,471.70 and 1,328,852,361.40
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Solution
The fourth proportional to 3,626,865,647.80, 5,440,298,471.70 and 1,328,852,361.40 is: 1,993,278,542.10
Step by Step Solution
- Step 1: Write the proportion equation
3,626,865,647.80 : 5,440,298,471.70 = 1,328,852,361.40 : x - Step 2: Convert to fraction form
3,626,865,647.80/5,440,298,471.70 = 1,328,852,361.40/x - Step 3: Cross multiply
3,626,865,647.80x = 5,440,298,471.70 × 1,328,852,361.40 - Step 4: Simplify right side
3,626,865,647.80x = 7,229,353,470,839,356,416 - Step 5: Solve for x
x = 7,229,353,470,839,356,416/3,626,865,647.80 - Step 6: Final answer
x = 1,993,278,542.10
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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.