Finding the Fourth Proportional to 5,378,367.66, 7,421,931.41 and 2,930,926.53
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Solution
The fourth proportional to 5,378,367.66, 7,421,931.41 and 2,930,926.53 is: 4,044,560.92
Step by Step Solution
- Step 1: Write the proportion equation
5,378,367.66 : 7,421,931.41 = 2,930,926.53 : x - Step 2: Convert to fraction form
5,378,367.66/7,421,931.41 = 2,930,926.53/x - Step 3: Cross multiply
5,378,367.66x = 7,421,931.41 × 2,930,926.53 - Step 4: Simplify right side
5,378,367.66x = 21,753,135,673,409.30 - Step 5: Solve for x
x = 21,753,135,673,409.30/5,378,367.66 - Step 6: Final answer
x = 4,044,560.92
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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.