Finding the Fourth Proportional to 3,626,865,636.80, 5,440,298,455.20 and 1,328,852,350.40
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Solution
The fourth proportional to 3,626,865,636.80, 5,440,298,455.20 and 1,328,852,350.40 is: 1,993,278,525.60
Step by Step Solution
- Step 1: Write the proportion equation
3,626,865,636.80 : 5,440,298,455.20 = 1,328,852,350.40 : x - Step 2: Convert to fraction form
3,626,865,636.80/5,440,298,455.20 = 1,328,852,350.40/x - Step 3: Cross multiply
3,626,865,636.80x = 5,440,298,455.20 × 1,328,852,350.40 - Step 4: Simplify right side
3,626,865,636.80x = 7,229,353,389,070,009,344 - Step 5: Solve for x
x = 7,229,353,389,070,009,344/3,626,865,636.80 - Step 6: Final answer
x = 1,993,278,525.60
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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.