Finding the Fourth Proportional to 172,776,747.60, 259,165,121.40 and 126,860,245.20
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Solution
The fourth proportional to 172,776,747.60, 259,165,121.40 and 126,860,245.20 is: 190,290,367.80
Step by Step Solution
- Step 1: Write the proportion equation
172,776,747.60 : 259,165,121.40 = 126,860,245.20 : x - Step 2: Convert to fraction form
172,776,747.60/259,165,121.40 = 126,860,245.20/x - Step 3: Cross multiply
172,776,747.60x = 259,165,121.40 × 126,860,245.20 - Step 4: Simplify right side
172,776,747.60x = 32,877,750,848,091,768 - Step 5: Solve for x
x = 32,877,750,848,091,768/172,776,747.60 - Step 6: Final answer
x = 190,290,367.80
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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.