Finding the Fourth Proportional to 7,278,336,278.40, 10,917,504,417.60 and 4,827,440,611.20
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Solution
The fourth proportional to 7,278,336,278.40, 10,917,504,417.60 and 4,827,440,611.20 is: 7,241,160,916.80
Step by Step Solution
- Step 1: Write the proportion equation
7,278,336,278.40 : 10,917,504,417.60 = 4,827,440,611.20 : x - Step 2: Convert to fraction form
7,278,336,278.40/10,917,504,417.60 = 4,827,440,611.20/x - Step 3: Cross multiply
7,278,336,278.40x = 10,917,504,417.60 × 4,827,440,611.20 - Step 4: Simplify right side
7,278,336,278.40x = 52,703,604,198,477,643,776 - Step 5: Solve for x
x = 52,703,604,198,477,643,776/7,278,336,278.40 - Step 6: Final answer
x = 7,241,160,916.80
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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.