Finding the Fourth Proportional to 7,720,303.63, 11,580,994.92 and 3,171,581.77
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Solution
The fourth proportional to 7,720,303.63, 11,580,994.92 and 3,171,581.77 is: 4,757,594.28
Step by Step Solution
- Step 1: Write the proportion equation
7,720,303.63 : 11,580,994.92 = 3,171,581.77 : x - Step 2: Convert to fraction form
7,720,303.63/11,580,994.92 = 3,171,581.77/x - Step 3: Cross multiply
7,720,303.63x = 11,580,994.92 × 3,171,581.77 - Step 4: Simplify right side
7,720,303.63x = 36,730,072,366,734.61 - Step 5: Solve for x
x = 36,730,072,366,734.61/7,720,303.63 - Step 6: Final answer
x = 4,757,594.28
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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.