Finding the Fourth Proportional to 197,876,542.90, 296,860,413.98 and 68,484,154.55
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Solution
The fourth proportional to 197,876,542.90, 296,860,413.98 and 68,484,154.55 is: 102,742,013.65
Step by Step Solution
- Step 1: Write the proportion equation
197,876,542.90 : 296,860,413.98 = 68,484,154.55 : x - Step 2: Convert to fraction form
197,876,542.90/296,860,413.98 = 68,484,154.55/x - Step 3: Cross multiply
197,876,542.90x = 296,860,413.98 × 68,484,154.55 - Step 4: Simplify right side
197,876,542.90x = 20,330,234,470,783,300 - Step 5: Solve for x
x = 20,330,234,470,783,300/197,876,542.90 - Step 6: Final answer
x = 102,742,013.65
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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.