Finding the Fourth Proportional to 19,156,446.93, 28,743,638.49 and 8,372,346.56
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Solution
The fourth proportional to 19,156,446.93, 28,743,638.49 and 8,372,346.56 is: 12,562,439.36
Step by Step Solution
- Step 1: Write the proportion equation
19,156,446.93 : 28,743,638.49 = 8,372,346.56 : x - Step 2: Convert to fraction form
19,156,446.93/28,743,638.49 = 8,372,346.56/x - Step 3: Cross multiply
19,156,446.93x = 28,743,638.49 × 8,372,346.56 - Step 4: Simplify right side
19,156,446.93x = 240,651,702,833,635.06 - Step 5: Solve for x
x = 240,651,702,833,635.06/19,156,446.93 - Step 6: Final answer
x = 12,562,439.36
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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.