Finding the Fourth Proportional to 65,192,366,455.36, 97,788,427,632.42 and 20,427,290,131.84
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Solution
The fourth proportional to 65,192,366,455.36, 97,788,427,632.42 and 20,427,290,131.84 is: 30,640,896,954.58
Step by Step Solution
- Step 1: Write the proportion equation
65,192,366,455.36 : 97,788,427,632.42 = 20,427,290,131.84 : x - Step 2: Convert to fraction form
65,192,366,455.36/97,788,427,632.42 = 20,427,290,131.84/x - Step 3: Cross multiply
65,192,366,455.36x = 97,788,427,632.42 × 20,427,290,131.84 - Step 4: Simplify right side
65,192,366,455.36x = 1,997,552,582,783,883,018,240 - Step 5: Solve for x
x = 1,997,552,582,783,883,018,240/65,192,366,455.36 - Step 6: Final answer
x = 30,640,896,954.58
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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.