Finding the Fourth Proportional to 13,287,021.74, 19,930,531.80 and 3,189,642.74
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Solution
The fourth proportional to 13,287,021.74, 19,930,531.80 and 3,189,642.74 is: 4,784,463.92
Step by Step Solution
- Step 1: Write the proportion equation
13,287,021.74 : 19,930,531.80 = 3,189,642.74 : x - Step 2: Convert to fraction form
13,287,021.74/19,930,531.80 = 3,189,642.74/x - Step 3: Cross multiply
13,287,021.74x = 19,930,531.80 × 3,189,642.74 - Step 4: Simplify right side
13,287,021.74x = 63,571,276,060,209.14 - Step 5: Solve for x
x = 63,571,276,060,209.14/13,287,021.74 - Step 6: Final answer
x = 4,784,463.92
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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.