Finding the Fourth Proportional to 21,844,815.72, 32,781,839.13 and 9,065,319.99
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Solution
The fourth proportional to 21,844,815.72, 32,781,839.13 and 9,065,319.99 is: 13,604,045.25
Step by Step Solution
- Step 1: Write the proportion equation
21,844,815.72 : 32,781,839.13 = 9,065,319.99 : x - Step 2: Convert to fraction form
21,844,815.72/32,781,839.13 = 9,065,319.99/x - Step 3: Cross multiply
21,844,815.72x = 32,781,839.13 × 9,065,319.99 - Step 4: Simplify right side
21,844,815.72x = 297,177,861,574,153.19 - Step 5: Solve for x
x = 297,177,861,574,153.19/21,844,815.72 - Step 6: Final answer
x = 13,604,045.25
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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.