Finding the Fourth Proportional to 12,364,657.70, 18,538,346.55 and 7,313,368.10
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Solution
The fourth proportional to 12,364,657.70, 18,538,346.55 and 7,313,368.10 is: 10,964,941.82
Step by Step Solution
- Step 1: Write the proportion equation
12,364,657.70 : 18,538,346.55 = 7,313,368.10 : x - Step 2: Convert to fraction form
12,364,657.70/18,538,346.55 = 7,313,368.10/x - Step 3: Cross multiply
12,364,657.70x = 18,538,346.55 × 7,313,368.10 - Step 4: Simplify right side
12,364,657.70x = 135,577,752,285,515.05 - Step 5: Solve for x
x = 135,577,752,285,515.05/12,364,657.70 - Step 6: Final answer
x = 10,964,941.82
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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.