Finding the Fourth Proportional to 15,461,968.56, 21,341,232.36 and 8,850,390.44
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Solution
The fourth proportional to 15,461,968.56, 21,341,232.36 and 8,850,390.44 is: 12,215,665.69
Step by Step Solution
- Step 1: Write the proportion equation
15,461,968.56 : 21,341,232.36 = 8,850,390.44 : x - Step 2: Convert to fraction form
15,461,968.56/21,341,232.36 = 8,850,390.44/x - Step 3: Cross multiply
15,461,968.56x = 21,341,232.36 × 8,850,390.44 - Step 4: Simplify right side
15,461,968.56x = 188,878,238,856,762.62 - Step 5: Solve for x
x = 188,878,238,856,762.62/15,461,968.56 - Step 6: Final answer
x = 12,215,665.69
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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.