Finding the Fourth Proportional to 2,861,570,513.80, 4,292,355,770.70 and 2,680,171,985.80
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Solution
The fourth proportional to 2,861,570,513.80, 4,292,355,770.70 and 2,680,171,985.80 is: 4,020,257,978.70
Step by Step Solution
- Step 1: Write the proportion equation
2,861,570,513.80 : 4,292,355,770.70 = 2,680,171,985.80 : x - Step 2: Convert to fraction form
2,861,570,513.80/4,292,355,770.70 = 2,680,171,985.80/x - Step 3: Cross multiply
2,861,570,513.80x = 4,292,355,770.70 × 2,680,171,985.80 - Step 4: Simplify right side
2,861,570,513.80x = 11,504,251,689,717,108,736 - Step 5: Solve for x
x = 11,504,251,689,717,108,736/2,861,570,513.80 - Step 6: Final answer
x = 4,020,257,978.70
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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.