Finding the Fourth Proportional to 171,620,475.60, 257,430,713.40 and 157,511,701.20
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Solution
The fourth proportional to 171,620,475.60, 257,430,713.40 and 157,511,701.20 is: 236,267,551.80
Step by Step Solution
- Step 1: Write the proportion equation
171,620,475.60 : 257,430,713.40 = 157,511,701.20 : x - Step 2: Convert to fraction form
171,620,475.60/257,430,713.40 = 157,511,701.20/x - Step 3: Cross multiply
171,620,475.60x = 257,430,713.40 × 157,511,701.20 - Step 4: Simplify right side
171,620,475.60x = 40,548,349,608,763,632 - Step 5: Solve for x
x = 40,548,349,608,763,632/171,620,475.60 - Step 6: Final answer
x = 236,267,551.80
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1.5x scale
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.