Finding the Fourth Proportional to 18,391,317.40, 27,539,736.90 and 14,580,688.60
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Solution
The fourth proportional to 18,391,317.40, 27,539,736.90 and 14,580,688.60 is: 21,833,581.53
Step by Step Solution
- Step 1: Write the proportion equation
18,391,317.40 : 27,539,736.90 = 14,580,688.60 : x - Step 2: Convert to fraction form
18,391,317.40/27,539,736.90 = 14,580,688.60/x - Step 3: Cross multiply
18,391,317.40x = 27,539,736.90 × 14,580,688.60 - Step 4: Simplify right side
18,391,317.40x = 401,548,327,864,829.31 - Step 5: Solve for x
x = 401,548,327,864,829.31/18,391,317.40 - Step 6: Final answer
x = 21,833,581.53
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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.