Finding the Fourth Proportional to 642,403,087.27, 886,806,740.49 and 404,597,760.99
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Solution
The fourth proportional to 642,403,087.27, 886,806,740.49 and 404,597,760.99 is: 558,527,860.06
Step by Step Solution
- Step 1: Write the proportion equation
642,403,087.27 : 886,806,740.49 = 404,597,760.99 : x - Step 2: Convert to fraction form
642,403,087.27/886,806,740.49 = 404,597,760.99/x - Step 3: Cross multiply
642,403,087.27x = 886,806,740.49 × 404,597,760.99 - Step 4: Simplify right side
642,403,087.27x = 358,800,021,628,251,200 - Step 5: Solve for x
x = 358,800,021,628,251,200/642,403,087.27 - Step 6: Final answer
x = 558,527,860.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.