Finding the Fourth Proportional to 861,941,436.66, 1,292,912,172.15 and 206,892,462.99
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Solution
The fourth proportional to 861,941,436.66, 1,292,912,172.15 and 206,892,462.99 is: 310,338,698.60
Step by Step Solution
- Step 1: Write the proportion equation
861,941,436.66 : 1,292,912,172.15 = 206,892,462.99 : x - Step 2: Convert to fraction form
861,941,436.66/1,292,912,172.15 = 206,892,462.99/x - Step 3: Cross multiply
861,941,436.66x = 1,292,912,172.15 × 206,892,462.99 - Step 4: Simplify right side
861,941,436.66x = 267,493,783,725,864,416 - Step 5: Solve for x
x = 267,493,783,725,864,416/861,941,436.66 - Step 6: Final answer
x = 310,338,698.60
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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.