Finding the Fourth Proportional to 18,403,953.40, 27,605,670.90 and 8,306,558.20
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Solution
The fourth proportional to 18,403,953.40, 27,605,670.90 and 8,306,558.20 is: 12,459,720.31
Step by Step Solution
- Step 1: Write the proportion equation
18,403,953.40 : 27,605,670.90 = 8,306,558.20 : x - Step 2: Convert to fraction form
18,403,953.40/27,605,670.90 = 8,306,558.20/x - Step 3: Cross multiply
18,403,953.40x = 27,605,670.90 × 8,306,558.20 - Step 4: Simplify right side
18,403,953.40x = 229,308,111,980,896.38 - Step 5: Solve for x
x = 229,308,111,980,896.38/18,403,953.40 - Step 6: Final answer
x = 12,459,720.31
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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.