Finding the Fourth Proportional to 3,982,730,108.80, 5,974,095,163.20 and 3,438,086,627.20
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Solution
The fourth proportional to 3,982,730,108.80, 5,974,095,163.20 and 3,438,086,627.20 is: 5,157,129,940.80
Step by Step Solution
- Step 1: Write the proportion equation
3,982,730,108.80 : 5,974,095,163.20 = 3,438,086,627.20 : x - Step 2: Convert to fraction form
3,982,730,108.80/5,974,095,163.20 = 3,438,086,627.20/x - Step 3: Cross multiply
3,982,730,108.80x = 5,974,095,163.20 × 3,438,086,627.20 - Step 4: Simplify right side
3,982,730,108.80x = 20,539,456,690,218,119,168 - Step 5: Solve for x
x = 20,539,456,690,218,119,168/3,982,730,108.80 - Step 6: Final answer
x = 5,157,129,940.80
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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.