Finding the Fourth Proportional to 3,626,865,664.80, 5,440,298,497.20 and 1,328,852,378.40
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Solution
The fourth proportional to 3,626,865,664.80, 5,440,298,497.20 and 1,328,852,378.40 is: 1,993,278,567.60
Step by Step Solution
- Step 1: Write the proportion equation
3,626,865,664.80 : 5,440,298,497.20 = 1,328,852,378.40 : x - Step 2: Convert to fraction form
3,626,865,664.80/5,440,298,497.20 = 1,328,852,378.40/x - Step 3: Cross multiply
3,626,865,664.80x = 5,440,298,497.20 × 1,328,852,378.40 - Step 4: Simplify right side
3,626,865,664.80x = 7,229,353,597,210,166,272 - Step 5: Solve for x
x = 7,229,353,597,210,166,272/3,626,865,664.80 - Step 6: Final answer
x = 1,993,278,567.60
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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.