Finding the Fourth Proportional to 7,439,978, 11,160,070.68 and 2,121,194
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Solution
The fourth proportional to 7,439,978, 11,160,070.68 and 2,121,194 is: 3,181,820.56
Step by Step Solution
- Step 1: Write the proportion equation
7,439,978 : 11,160,070.68 = 2,121,194 : x - Step 2: Convert to fraction form
7,439,978/11,160,070.68 = 2,121,194/x - Step 3: Cross multiply
7,439,978x = 11,160,070.68 × 2,121,194 - Step 4: Simplify right side
7,439,978x = 23,672,674,965,991.92 - Step 5: Solve for x
x = 23,672,674,965,991.92/7,439,978 - Step 6: Final answer
x = 3,181,820.56
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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.