Finding the Fourth Proportional to 12,096,471.80, 18,144,707.70 and 3,121,023.80
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Solution
The fourth proportional to 12,096,471.80, 18,144,707.70 and 3,121,023.80 is: 4,681,535.70
Step by Step Solution
- Step 1: Write the proportion equation
12,096,471.80 : 18,144,707.70 = 3,121,023.80 : x - Step 2: Convert to fraction form
12,096,471.80/18,144,707.70 = 3,121,023.80/x - Step 3: Cross multiply
12,096,471.80x = 18,144,707.70 × 3,121,023.80 - Step 4: Simplify right side
12,096,471.80x = 56,630,064,575,743.26 - Step 5: Solve for x
x = 56,630,064,575,743.26/12,096,471.80 - Step 6: Final answer
x = 4,681,535.70
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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.