Finding the Fourth Proportional to 372,215,413.80, 558,344,115.90 and 113,439,076.20
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Solution
The fourth proportional to 372,215,413.80, 558,344,115.90 and 113,439,076.20 is: 170,165,012.95
Step by Step Solution
- Step 1: Write the proportion equation
372,215,413.80 : 558,344,115.90 = 113,439,076.20 : x - Step 2: Convert to fraction form
372,215,413.80/558,344,115.90 = 113,439,076.20/x - Step 3: Cross multiply
372,215,413.80x = 558,344,115.90 × 113,439,076.20 - Step 4: Simplify right side
372,215,413.80x = 63,338,040,709,401,728 - Step 5: Solve for x
x = 63,338,040,709,401,728/372,215,413.80 - Step 6: Final answer
x = 170,165,012.95
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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.