Finding the Fourth Proportional to 2,135,620,850.85, 2,948,178,730.25 and 1,422,343,409.93
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Solution
The fourth proportional to 2,135,620,850.85, 2,948,178,730.25 and 1,422,343,409.93 is: 1,963,514,537.99
Step by Step Solution
- Step 1: Write the proportion equation
2,135,620,850.85 : 2,948,178,730.25 = 1,422,343,409.93 : x - Step 2: Convert to fraction form
2,135,620,850.85/2,948,178,730.25 = 1,422,343,409.93/x - Step 3: Cross multiply
2,135,620,850.85x = 2,948,178,730.25 × 1,422,343,409.93 - Step 4: Simplify right side
2,135,620,850.85x = 4,193,322,588,259,770,880 - Step 5: Solve for x
x = 4,193,322,588,259,770,880/2,135,620,850.85 - Step 6: Final answer
x = 1,963,514,537.99
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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.