Finding the Fourth Proportional to 6,821,637,731.68, 10,233,432,689.52 and 2,100,359,120.80
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Solution
The fourth proportional to 6,821,637,731.68, 10,233,432,689.52 and 2,100,359,120.80 is: 3,150,839,216.62
Step by Step Solution
- Step 1: Write the proportion equation
6,821,637,731.68 : 10,233,432,689.52 = 2,100,359,120.80 : x - Step 2: Convert to fraction form
6,821,637,731.68/10,233,432,689.52 = 2,100,359,120.80/x - Step 3: Cross multiply
6,821,637,731.68x = 10,233,432,689.52 × 2,100,359,120.80 - Step 4: Simplify right side
6,821,637,731.68x = 21,493,883,686,526,205,952 - Step 5: Solve for x
x = 21,493,883,686,526,205,952/6,821,637,731.68 - Step 6: Final answer
x = 3,150,839,216.62
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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.