Finding the Fourth Proportional to 12,471,479.60, 18,713,440.20 and 7,084,266.80
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Solution
The fourth proportional to 12,471,479.60, 18,713,440.20 and 7,084,266.80 is: 10,629,933.85
Step by Step Solution
- Step 1: Write the proportion equation
12,471,479.60 : 18,713,440.20 = 7,084,266.80 : x - Step 2: Convert to fraction form
12,471,479.60/18,713,440.20 = 7,084,266.80/x - Step 3: Cross multiply
12,471,479.60x = 18,713,440.20 × 7,084,266.80 - Step 4: Simplify right side
12,471,479.60x = 132,571,003,122,645.34 - Step 5: Solve for x
x = 132,571,003,122,645.34/12,471,479.60 - Step 6: Final answer
x = 10,629,933.85
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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.