Finding the Fourth Proportional to 10,995,908.80, 16,493,863.20 and 5,012,276.80
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Solution
The fourth proportional to 10,995,908.80, 16,493,863.20 and 5,012,276.80 is: 7,518,415.20
Step by Step Solution
- Step 1: Write the proportion equation
10,995,908.80 : 16,493,863.20 = 5,012,276.80 : x - Step 2: Convert to fraction form
10,995,908.80/16,493,863.20 = 5,012,276.80/x - Step 3: Cross multiply
10,995,908.80x = 16,493,863.20 × 5,012,276.80 - Step 4: Simplify right side
10,995,908.80x = 82,671,807,859,733.75 - Step 5: Solve for x
x = 82,671,807,859,733.75/10,995,908.80 - Step 6: Final answer
x = 7,518,415.20
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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.