Finding the Fourth Proportional to 6,406,474.40, 9,611,123.24 and 1,857,713.10
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Solution
The fourth proportional to 6,406,474.40, 9,611,123.24 and 1,857,713.10 is: 2,786,978.99
Step by Step Solution
- Step 1: Write the proportion equation
6,406,474.40 : 9,611,123.24 = 1,857,713.10 : x - Step 2: Convert to fraction form
6,406,474.40/9,611,123.24 = 1,857,713.10/x - Step 3: Cross multiply
6,406,474.40x = 9,611,123.24 × 1,857,713.10 - Step 4: Simplify right side
6,406,474.40x = 17,854,709,548,662.45 - Step 5: Solve for x
x = 17,854,709,548,662.45/6,406,474.40 - Step 6: Final answer
x = 2,786,978.99
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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.