Finding the Fourth Proportional to 13,121,691.96, 19,691,317.17 and 5,445,336.54
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Solution
The fourth proportional to 13,121,691.96, 19,691,317.17 and 5,445,336.54 is: 8,171,648.08
Step by Step Solution
- Step 1: Write the proportion equation
13,121,691.96 : 19,691,317.17 = 5,445,336.54 : x - Step 2: Convert to fraction form
13,121,691.96/19,691,317.17 = 5,445,336.54/x - Step 3: Cross multiply
13,121,691.96x = 19,691,317.17 × 5,445,336.54 - Step 4: Simplify right side
13,121,691.96x = 107,225,848,886,110.39 - Step 5: Solve for x
x = 107,225,848,886,110.39/13,121,691.96 - Step 6: Final answer
x = 8,171,648.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.