Finding the Fourth Proportional to 7,936,948,076.72, 11,905,453,312.50 and 3,215,359,183.28
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Solution
The fourth proportional to 7,936,948,076.72, 11,905,453,312.50 and 3,215,359,183.28 is: 4,823,051,413.39
Step by Step Solution
- Step 1: Write the proportion equation
7,936,948,076.72 : 11,905,453,312.50 = 3,215,359,183.28 : x - Step 2: Convert to fraction form
7,936,948,076.72/11,905,453,312.50 = 3,215,359,183.28/x - Step 3: Cross multiply
7,936,948,076.72x = 11,905,453,312.50 × 3,215,359,183.28 - Step 4: Simplify right side
7,936,948,076.72x = 38,280,308,639,458,172,928 - Step 5: Solve for x
x = 38,280,308,639,458,172,928/7,936,948,076.72 - Step 6: Final answer
x = 4,823,051,413.39
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1.5x scale
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.