Finding the Fourth Proportional to 433,102,403.80, 649,653,605.70 and 331,065,731.80
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Solution
The fourth proportional to 433,102,403.80, 649,653,605.70 and 331,065,731.80 is: 496,598,597.70
Step by Step Solution
- Step 1: Write the proportion equation
433,102,403.80 : 649,653,605.70 = 331,065,731.80 : x - Step 2: Convert to fraction form
433,102,403.80/649,653,605.70 = 331,065,731.80/x - Step 3: Cross multiply
433,102,403.80x = 649,653,605.70 × 331,065,731.80 - Step 4: Simplify right side
433,102,403.80x = 215,078,046,387,579,168 - Step 5: Solve for x
x = 215,078,046,387,579,168/433,102,403.80 - Step 6: Final answer
x = 496,598,597.70
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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.