Finding the Fourth Proportional to 9,776,805.20, 14,672,206.20 and 5,512,446.80
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Solution
The fourth proportional to 9,776,805.20, 14,672,206.20 and 5,512,446.80 is: 8,272,616.10
Step by Step Solution
- Step 1: Write the proportion equation
9,776,805.20 : 14,672,206.20 = 5,512,446.80 : x - Step 2: Convert to fraction form
9,776,805.20/14,672,206.20 = 5,512,446.80/x - Step 3: Cross multiply
9,776,805.20x = 14,672,206.20 × 5,512,446.80 - Step 4: Simplify right side
9,776,805.20x = 80,879,756,116,130.16 - Step 5: Solve for x
x = 80,879,756,116,130.16/9,776,805.20 - Step 6: Final answer
x = 8,272,616.10
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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.