Finding the Fourth Proportional to 7,578,268.33, 11,367,239.21 and 2,113,217.56
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Solution
The fourth proportional to 7,578,268.33, 11,367,239.21 and 2,113,217.56 is: 3,169,780.81
Step by Step Solution
- Step 1: Write the proportion equation
7,578,268.33 : 11,367,239.21 = 2,113,217.56 : x - Step 2: Convert to fraction form
7,578,268.33/11,367,239.21 = 2,113,217.56/x - Step 3: Cross multiply
7,578,268.33x = 11,367,239.21 × 2,113,217.56 - Step 4: Simplify right side
7,578,268.33x = 24,021,449,507,292.53 - Step 5: Solve for x
x = 24,021,449,507,292.53/7,578,268.33 - Step 6: Final answer
x = 3,169,780.81
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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.