Finding the Fourth Proportional to 1,412,985,290.60, 1,949,884,062.18 and 777,899,442.14
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Solution
The fourth proportional to 1,412,985,290.60, 1,949,884,062.18 and 777,899,442.14 is: 1,073,481,609.68
Step by Step Solution
- Step 1: Write the proportion equation
1,412,985,290.60 : 1,949,884,062.18 = 777,899,442.14 : x - Step 2: Convert to fraction form
1,412,985,290.60/1,949,884,062.18 = 777,899,442.14/x - Step 3: Cross multiply
1,412,985,290.60x = 1,949,884,062.18 × 777,899,442.14 - Step 4: Simplify right side
1,412,985,290.60x = 1,516,813,724,197,749,760 - Step 5: Solve for x
x = 1,516,813,724,197,749,760/1,412,985,290.60 - Step 6: Final answer
x = 1,073,481,609.68
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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.