Finding the Fourth Proportional to 5,919,408.40, 8,168,805.12 and 3,203,154.40
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Solution
The fourth proportional to 5,919,408.40, 8,168,805.12 and 3,203,154.40 is: 4,420,364.72
Step by Step Solution
- Step 1: Write the proportion equation
5,919,408.40 : 8,168,805.12 = 3,203,154.40 : x - Step 2: Convert to fraction form
5,919,408.40/8,168,805.12 = 3,203,154.40/x - Step 3: Cross multiply
5,919,408.40x = 8,168,805.12 × 3,203,154.40 - Step 4: Simplify right side
5,919,408.40x = 26,165,944,062,870.53 - Step 5: Solve for x
x = 26,165,944,062,870.53/5,919,408.40 - Step 6: Final answer
x = 4,420,364.72
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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.