Finding the Fourth Proportional to 128,904,670.41, 193,355,092.05 and 31,860,372.66
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Solution
The fourth proportional to 128,904,670.41, 193,355,092.05 and 31,860,372.66 is: 47,790,086.03
Step by Step Solution
- Step 1: Write the proportion equation
128,904,670.41 : 193,355,092.05 = 31,860,372.66 : x - Step 2: Convert to fraction form
128,904,670.41/193,355,092.05 = 31,860,372.66/x - Step 3: Cross multiply
128,904,670.41x = 193,355,092.05 × 31,860,372.66 - Step 4: Simplify right side
128,904,670.41x = 6,160,365,288,421,604 - Step 5: Solve for x
x = 6,160,365,288,421,604/128,904,670.41 - Step 6: Final answer
x = 47,790,086.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.