Finding the Fourth Proportional to 8,051,884.79, 12,085,394.20 and 4,216,460.06
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Solution
The fourth proportional to 8,051,884.79, 12,085,394.20 and 4,216,460.06 is: 6,328,652.65
Step by Step Solution
- Step 1: Write the proportion equation
8,051,884.79 : 12,085,394.20 = 4,216,460.06 : x - Step 2: Convert to fraction form
8,051,884.79/12,085,394.20 = 4,216,460.06/x - Step 3: Cross multiply
8,051,884.79x = 12,085,394.20 × 4,216,460.06 - Step 4: Simplify right side
8,051,884.79x = 50,957,581,973,327.98 - Step 5: Solve for x
x = 50,957,581,973,327.98/8,051,884.79 - Step 6: Final answer
x = 6,328,652.65
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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.