Finding the Fourth Proportional to 4,752,341.20, 7,128,511.80 and 2,232,917.20
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Solution
The fourth proportional to 4,752,341.20, 7,128,511.80 and 2,232,917.20 is: 3,349,375.80
Step by Step Solution
- Step 1: Write the proportion equation
4,752,341.20 : 7,128,511.80 = 2,232,917.20 : x - Step 2: Convert to fraction form
4,752,341.20/7,128,511.80 = 2,232,917.20/x - Step 3: Cross multiply
4,752,341.20x = 7,128,511.80 × 2,232,917.20 - Step 4: Simplify right side
4,752,341.20x = 15,917,376,608,622.96 - Step 5: Solve for x
x = 15,917,376,608,622.96/4,752,341.20 - Step 6: Final answer
x = 3,349,375.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.