Finding the Fourth Proportional to 12,298,412.70, 18,447,619.05 and 4,320,236.70
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Solution
The fourth proportional to 12,298,412.70, 18,447,619.05 and 4,320,236.70 is: 6,480,355.05
Step by Step Solution
- Step 1: Write the proportion equation
12,298,412.70 : 18,447,619.05 = 4,320,236.70 : x - Step 2: Convert to fraction form
12,298,412.70/18,447,619.05 = 4,320,236.70/x - Step 3: Cross multiply
12,298,412.70x = 18,447,619.05 × 4,320,236.70 - Step 4: Simplify right side
12,298,412.70x = 79,698,080,847,429.14 - Step 5: Solve for x
x = 79,698,080,847,429.14/12,298,412.70 - Step 6: Final answer
x = 6,480,355.05
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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.