Finding the Fourth Proportional to 80,881,128, 121,321,692 and 27,028,440
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Solution
The fourth proportional to 80,881,128, 121,321,692 and 27,028,440 is: 40,542,660
Step by Step Solution
- Step 1: Write the proportion equation
80,881,128 : 121,321,692 = 27,028,440 : x - Step 2: Convert to fraction form
80,881,128/121,321,692 = 27,028,440/x - Step 3: Cross multiply
80,881,128x = 121,321,692 × 27,028,440 - Step 4: Simplify right side
80,881,128x = 3,279,136,072,920,480 - Step 5: Solve for x
x = 3,279,136,072,920,480/80,881,128 - Step 6: Final answer
x = 40,542,660
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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.