Finding the Fourth Proportional to 11,888,624.40, 17,821,126.80 and 5,487,712.80
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Solution
The fourth proportional to 11,888,624.40, 17,821,126.80 and 5,487,712.80 is: 8,226,117.87
Step by Step Solution
- Step 1: Write the proportion equation
11,888,624.40 : 17,821,126.80 = 5,487,712.80 : x - Step 2: Convert to fraction form
11,888,624.40/17,821,126.80 = 5,487,712.80/x - Step 3: Cross multiply
11,888,624.40x = 17,821,126.80 × 5,487,712.80 - Step 4: Simplify right side
11,888,624.40x = 97,797,225,650,783.05 - Step 5: Solve for x
x = 97,797,225,650,783.05/11,888,624.40 - Step 6: Final answer
x = 8,226,117.87
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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.