Finding the Fourth Proportional to 5,538,357.12, 8,307,468.84 and 1,439,315.13
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Solution
The fourth proportional to 5,538,357.12, 8,307,468.84 and 1,439,315.13 is: 2,158,955.32
Step by Step Solution
- Step 1: Write the proportion equation
5,538,357.12 : 8,307,468.84 = 1,439,315.13 : x - Step 2: Convert to fraction form
5,538,357.12/8,307,468.84 = 1,439,315.13/x - Step 3: Cross multiply
5,538,357.12x = 8,307,468.84 × 1,439,315.13 - Step 4: Simplify right side
5,538,357.12x = 11,957,065,593,415.55 - Step 5: Solve for x
x = 11,957,065,593,415.55/5,538,357.12 - Step 6: Final answer
x = 2,158,955.32
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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.