Finding the Fourth Proportional to 433,103,391.40, 649,655,087.10 and 385,486,277.80
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Solution
The fourth proportional to 433,103,391.40, 649,655,087.10 and 385,486,277.80 is: 578,229,416.70
Step by Step Solution
- Step 1: Write the proportion equation
433,103,391.40 : 649,655,087.10 = 385,486,277.80 : x - Step 2: Convert to fraction form
433,103,391.40/649,655,087.10 = 385,486,277.80/x - Step 3: Cross multiply
433,103,391.40x = 649,655,087.10 × 385,486,277.80 - Step 4: Simplify right side
433,103,391.40x = 250,433,121,380,013,824 - Step 5: Solve for x
x = 250,433,121,380,013,824/433,103,391.40 - Step 6: Final answer
x = 578,229,416.70
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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.