Finding the Fourth Proportional to 15,277,639.96, 21,082,722.42 and 8,402,124.52
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Solution
The fourth proportional to 15,277,639.96, 21,082,722.42 and 8,402,124.52 is: 11,594,700.45
Step by Step Solution
- Step 1: Write the proportion equation
15,277,639.96 : 21,082,722.42 = 8,402,124.52 : x - Step 2: Convert to fraction form
15,277,639.96/21,082,722.42 = 8,402,124.52/x - Step 3: Cross multiply
15,277,639.96x = 21,082,722.42 × 8,402,124.52 - Step 4: Simplify right side
15,277,639.96x = 177,139,658,993,435.75 - Step 5: Solve for x
x = 177,139,658,993,435.75/15,277,639.96 - Step 6: Final answer
x = 11,594,700.45
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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.