Finding the Fourth Proportional to 342,553,438.10, 472,642,720.63 and 193,874,556.05
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Solution
The fourth proportional to 342,553,438.10, 472,642,720.63 and 193,874,556.05 is: 267,501,030.32
Step by Step Solution
- Step 1: Write the proportion equation
342,553,438.10 : 472,642,720.63 = 193,874,556.05 : x - Step 2: Convert to fraction form
342,553,438.10/472,642,720.63 = 193,874,556.05/x - Step 3: Cross multiply
342,553,438.10x = 472,642,720.63 × 193,874,556.05 - Step 4: Simplify right side
342,553,438.10x = 91,633,397,633,102,352 - Step 5: Solve for x
x = 91,633,397,633,102,352/342,553,438.10 - Step 6: Final answer
x = 267,501,030.32
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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.