Finding the Fourth Proportional to 8,427,625.76, 11,638,156.56 and 7,968,565.28
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Solution
The fourth proportional to 8,427,625.76, 11,638,156.56 and 7,968,565.28 is: 11,004,215.53
Step by Step Solution
- Step 1: Write the proportion equation
8,427,625.76 : 11,638,156.56 = 7,968,565.28 : x - Step 2: Convert to fraction form
8,427,625.76/11,638,156.56 = 7,968,565.28/x - Step 3: Cross multiply
8,427,625.76x = 11,638,156.56 × 7,968,565.28 - Step 4: Simplify right side
8,427,625.76x = 92,739,410,287,220.25 - Step 5: Solve for x
x = 92,739,410,287,220.25/8,427,625.76 - Step 6: Final answer
x = 11,004,215.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.