Finding the Fourth Proportional to 7,672,765,875.30, 11,509,148,812.95 and 5,193,274,745.70
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Solution
The fourth proportional to 7,672,765,875.30, 11,509,148,812.95 and 5,193,274,745.70 is: 7,789,912,118.55
Step by Step Solution
- Step 1: Write the proportion equation
7,672,765,875.30 : 11,509,148,812.95 = 5,193,274,745.70 : x - Step 2: Convert to fraction form
7,672,765,875.30/11,509,148,812.95 = 5,193,274,745.70/x - Step 3: Cross multiply
7,672,765,875.30x = 11,509,148,812.95 × 5,193,274,745.70 - Step 4: Simplify right side
7,672,765,875.30x = 59,770,171,874,796,371,968 - Step 5: Solve for x
x = 59,770,171,874,796,371,968/7,672,765,875.30 - Step 6: Final answer
x = 7,789,912,118.55
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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.