Finding the Fourth Proportional to 1,989,057,092, 2,745,092,739.84 and 1,486,393,026.80
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Solution
The fourth proportional to 1,989,057,092, 2,745,092,739.84 and 1,486,393,026.80 is: 2,051,367,315.11
Step by Step Solution
- Step 1: Write the proportion equation
1,989,057,092 : 2,745,092,739.84 = 1,486,393,026.80 : x - Step 2: Convert to fraction form
1,989,057,092/2,745,092,739.84 = 1,486,393,026.80/x - Step 3: Cross multiply
1,989,057,092x = 2,745,092,739.84 × 1,486,393,026.80 - Step 4: Simplify right side
1,989,057,092x = 4,080,286,706,417,482,752 - Step 5: Solve for x
x = 4,080,286,706,417,482,752/1,989,057,092 - Step 6: Final answer
x = 2,051,367,315.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.