Finding the Fourth Proportional to 7,769,657.60, 11,650,339.20 and 3,276,857.60
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Solution
The fourth proportional to 7,769,657.60, 11,650,339.20 and 3,276,857.60 is: 4,913,537.32
Step by Step Solution
- Step 1: Write the proportion equation
7,769,657.60 : 11,650,339.20 = 3,276,857.60 : x - Step 2: Convert to fraction form
7,769,657.60/11,650,339.20 = 3,276,857.60/x - Step 3: Cross multiply
7,769,657.60x = 11,650,339.20 × 3,276,857.60 - Step 4: Simplify right side
7,769,657.60x = 38,176,502,550,097.92 - Step 5: Solve for x
x = 38,176,502,550,097.92/7,769,657.60 - Step 6: Final answer
x = 4,913,537.32
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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.