Finding the Fourth Proportional to 8,272,039.20, 12,408,447.60 and 2,592,448.80
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Solution
The fourth proportional to 8,272,039.20, 12,408,447.60 and 2,592,448.80 is: 3,888,795.05
Step by Step Solution
- Step 1: Write the proportion equation
8,272,039.20 : 12,408,447.60 = 2,592,448.80 : x - Step 2: Convert to fraction form
8,272,039.20/12,408,447.60 = 2,592,448.80/x - Step 3: Cross multiply
8,272,039.20x = 12,408,447.60 × 2,592,448.80 - Step 4: Simplify right side
8,272,039.20x = 32,168,265,090,482.88 - Step 5: Solve for x
x = 32,168,265,090,482.88/8,272,039.20 - Step 6: Final answer
x = 3,888,795.05
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1.5x scale
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.