Finding the Fourth Proportional to 205,917,046.21, 308,873,616.67 and 52,560,986.05
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Solution
The fourth proportional to 205,917,046.21, 308,873,616.67 and 52,560,986.05 is: 78,840,980.66
Step by Step Solution
- Step 1: Write the proportion equation
205,917,046.21 : 308,873,616.67 = 52,560,986.05 : x - Step 2: Convert to fraction form
205,917,046.21/308,873,616.67 = 52,560,986.05/x - Step 3: Cross multiply
205,917,046.21x = 308,873,616.67 × 52,560,986.05 - Step 4: Simplify right side
205,917,046.21x = 16,234,701,857,004,918 - Step 5: Solve for x
x = 16,234,701,857,004,918/205,917,046.21 - Step 6: Final answer
x = 78,840,980.66
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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.