Finding the Fourth Proportional to 15,797,421.80, 23,660,703.30 and 12,963,069.80
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Solution
The fourth proportional to 15,797,421.80, 23,660,703.30 and 12,963,069.80 is: 19,415,531.99
Step by Step Solution
- Step 1: Write the proportion equation
15,797,421.80 : 23,660,703.30 = 12,963,069.80 : x - Step 2: Convert to fraction form
15,797,421.80/23,660,703.30 = 12,963,069.80/x - Step 3: Cross multiply
15,797,421.80x = 23,660,703.30 × 12,963,069.80 - Step 4: Simplify right side
15,797,421.80x = 306,715,348,394,990.38 - Step 5: Solve for x
x = 306,715,348,394,990.38/15,797,421.80 - Step 6: Final answer
x = 19,415,531.99
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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.