Finding the Fourth Proportional to 16,512,661.20, 24,768,991.80 and 15,449,779.20
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Solution
The fourth proportional to 16,512,661.20, 24,768,991.80 and 15,449,779.20 is: 23,174,668.80
Step by Step Solution
- Step 1: Write the proportion equation
16,512,661.20 : 24,768,991.80 = 15,449,779.20 : x - Step 2: Convert to fraction form
16,512,661.20/24,768,991.80 = 15,449,779.20/x - Step 3: Cross multiply
16,512,661.20x = 24,768,991.80 × 15,449,779.20 - Step 4: Simplify right side
16,512,661.20x = 382,675,454,316,610.56 - Step 5: Solve for x
x = 382,675,454,316,610.56/16,512,661.20 - Step 6: Final answer
x = 23,174,668.80
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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.