Finding the Fourth Proportional to 129,030,413.70, 193,545,620.55 and 97,179,917.70
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Solution
The fourth proportional to 129,030,413.70, 193,545,620.55 and 97,179,917.70 is: 145,769,876.55
Step by Step Solution
- Step 1: Write the proportion equation
129,030,413.70 : 193,545,620.55 = 97,179,917.70 : x - Step 2: Convert to fraction form
129,030,413.70/193,545,620.55 = 97,179,917.70/x - Step 3: Cross multiply
129,030,413.70x = 193,545,620.55 × 97,179,917.70 - Step 4: Simplify right side
129,030,413.70x = 18,808,747,476,244,432 - Step 5: Solve for x
x = 18,808,747,476,244,432/129,030,413.70 - Step 6: Final answer
x = 145,769,876.55
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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.