Finding the Fourth Proportional to 1,390,845,823.40, 2,086,268,735.10 and 1,369,346,738.60
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Solution
The fourth proportional to 1,390,845,823.40, 2,086,268,735.10 and 1,369,346,738.60 is: 2,054,020,107.90
Step by Step Solution
- Step 1: Write the proportion equation
1,390,845,823.40 : 2,086,268,735.10 = 1,369,346,738.60 : x - Step 2: Convert to fraction form
1,390,845,823.40/2,086,268,735.10 = 1,369,346,738.60/x - Step 3: Cross multiply
1,390,845,823.40x = 2,086,268,735.10 × 1,369,346,738.60 - Step 4: Simplify right side
1,390,845,823.40x = 2,856,825,288,252,332,032 - Step 5: Solve for x
x = 2,856,825,288,252,332,032/1,390,845,823.40 - Step 6: Final answer
x = 2,054,020,107.90
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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.