Finding the Fourth Proportional to 12,165,448.47, 18,245,847.11 and 3,645,784.95
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Solution
The fourth proportional to 12,165,448.47, 18,245,847.11 and 3,645,784.95 is: 5,467,980.48
Step by Step Solution
- Step 1: Write the proportion equation
12,165,448.47 : 18,245,847.11 = 3,645,784.95 : x - Step 2: Convert to fraction form
12,165,448.47/18,245,847.11 = 3,645,784.95/x - Step 3: Cross multiply
12,165,448.47x = 18,245,847.11 × 3,645,784.95 - Step 4: Simplify right side
12,165,448.47x = 66,520,434,775,410.08 - Step 5: Solve for x
x = 66,520,434,775,410.08/12,165,448.47 - Step 6: Final answer
x = 5,467,980.48
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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.