Finding the Fourth Proportional to 171,620,420.10, 257,430,630.15 and 157,511,645.70
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Solution
The fourth proportional to 171,620,420.10, 257,430,630.15 and 157,511,645.70 is: 236,267,468.55
Step by Step Solution
- Step 1: Write the proportion equation
171,620,420.10 : 257,430,630.15 = 157,511,645.70 : x - Step 2: Convert to fraction form
171,620,420.10/257,430,630.15 = 157,511,645.70/x - Step 3: Cross multiply
171,620,420.10x = 257,430,630.15 × 157,511,645.70 - Step 4: Simplify right side
171,620,420.10x = 40,548,322,208,514,536 - Step 5: Solve for x
x = 40,548,322,208,514,536/171,620,420.10 - Step 6: Final answer
x = 236,267,468.55
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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.