Finding the Fourth Proportional to 5,613,909.28, 8,413,887.40 and 2,578,054.40
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Solution
The fourth proportional to 5,613,909.28, 8,413,887.40 and 2,578,054.40 is: 3,863,877.80
Step by Step Solution
- Step 1: Write the proportion equation
5,613,909.28 : 8,413,887.40 = 2,578,054.40 : x - Step 2: Convert to fraction form
5,613,909.28/8,413,887.40 = 2,578,054.40/x - Step 3: Cross multiply
5,613,909.28x = 8,413,887.40 × 2,578,054.40 - Step 4: Simplify right side
5,613,909.28x = 21,691,459,432,674.56 - Step 5: Solve for x
x = 21,691,459,432,674.56/5,613,909.28 - Step 6: Final answer
x = 3,863,877.80
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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.