Finding the Fourth Proportional to 10,128,219.15, 15,192,353.45 and 2,555,184.99
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Solution
The fourth proportional to 10,128,219.15, 15,192,353.45 and 2,555,184.99 is: 3,832,783.72
Step by Step Solution
- Step 1: Write the proportion equation
10,128,219.15 : 15,192,353.45 = 2,555,184.99 : x - Step 2: Convert to fraction form
10,128,219.15/15,192,353.45 = 2,555,184.99/x - Step 3: Cross multiply
10,128,219.15x = 15,192,353.45 × 2,555,184.99 - Step 4: Simplify right side
10,128,219.15x = 38,819,273,485,438.80 - Step 5: Solve for x
x = 38,819,273,485,438.80/10,128,219.15 - Step 6: Final answer
x = 3,832,783.72
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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.