Finding the Fourth Proportional to 331,485,678.70, 497,228,518.05 and 202,345,515.70
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Solution
The fourth proportional to 331,485,678.70, 497,228,518.05 and 202,345,515.70 is: 303,518,273.55
Step by Step Solution
- Step 1: Write the proportion equation
331,485,678.70 : 497,228,518.05 = 202,345,515.70 : x - Step 2: Convert to fraction form
331,485,678.70/497,228,518.05 = 202,345,515.70/x - Step 3: Cross multiply
331,485,678.70x = 497,228,518.05 × 202,345,515.70 - Step 4: Simplify right side
331,485,678.70x = 100,611,960,905,574,000 - Step 5: Solve for x
x = 100,611,960,905,574,000/331,485,678.70 - Step 6: Final answer
x = 303,518,273.55
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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.