Finding the Fourth Proportional to 12,645,869.48, 17,451,722.84 and 7,750,145.54
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Solution
The fourth proportional to 12,645,869.48, 17,451,722.84 and 7,750,145.54 is: 10,695,460.06
Step by Step Solution
- Step 1: Write the proportion equation
12,645,869.48 : 17,451,722.84 = 7,750,145.54 : x - Step 2: Convert to fraction form
12,645,869.48/17,451,722.84 = 7,750,145.54/x - Step 3: Cross multiply
12,645,869.48x = 17,451,722.84 × 7,750,145.54 - Step 4: Simplify right side
12,645,869.48x = 135,253,391,933,742.14 - Step 5: Solve for x
x = 135,253,391,933,742.14/12,645,869.48 - Step 6: Final answer
x = 10,695,460.06
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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.