Finding the Fourth Proportional to 7,193,503.08, 9,926,918.40 and 3,930,247.80
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Solution
The fourth proportional to 7,193,503.08, 9,926,918.40 and 3,930,247.80 is: 5,423,678.67
Step by Step Solution
- Step 1: Write the proportion equation
7,193,503.08 : 9,926,918.40 = 3,930,247.80 : x - Step 2: Convert to fraction form
7,193,503.08/9,926,918.40 = 3,930,247.80/x - Step 3: Cross multiply
7,193,503.08x = 9,926,918.40 × 3,930,247.80 - Step 4: Simplify right side
7,193,503.08x = 39,015,249,202,379.52 - Step 5: Solve for x
x = 39,015,249,202,379.52/7,193,503.08 - Step 6: Final answer
x = 5,423,678.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.