Finding the Fourth Proportional to 2,629,931,993.92, 3,629,261,293.77 and 1,424,263,447.09
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Solution
The fourth proportional to 2,629,931,993.92, 3,629,261,293.77 and 1,424,263,447.09 is: 1,965,459,263.82
Step by Step Solution
- Step 1: Write the proportion equation
2,629,931,993.92 : 3,629,261,293.77 = 1,424,263,447.09 : x - Step 2: Convert to fraction form
2,629,931,993.92/3,629,261,293.77 = 1,424,263,447.09/x - Step 3: Cross multiply
2,629,931,993.92x = 3,629,261,293.77 × 1,424,263,447.09 - Step 4: Simplify right side
2,629,931,993.92x = 5,169,024,200,655,172,608 - Step 5: Solve for x
x = 5,169,024,200,655,172,608/2,629,931,993.92 - Step 6: Final answer
x = 1,965,459,263.82
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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.