Finding the Fourth Proportional to 7,474,457.80, 11,211,686.70 and 7,101,209.80
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Solution
The fourth proportional to 7,474,457.80, 11,211,686.70 and 7,101,209.80 is: 10,651,814.70
Step by Step Solution
- Step 1: Write the proportion equation
7,474,457.80 : 11,211,686.70 = 7,101,209.80 : x - Step 2: Convert to fraction form
7,474,457.80/11,211,686.70 = 7,101,209.80/x - Step 3: Cross multiply
7,474,457.80x = 11,211,686.70 × 7,101,209.80 - Step 4: Simplify right side
7,474,457.80x = 79,616,539,468,569.66 - Step 5: Solve for x
x = 79,616,539,468,569.66/7,474,457.80 - Step 6: Final answer
x = 10,651,814.70
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Similar ratio
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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.