Finding the Fourth Proportional to 19,257,153.77, 28,837,815.23 and 13,472,805.99
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Solution
The fourth proportional to 19,257,153.77, 28,837,815.23 and 13,472,805.99 is: 20,175,686.11
Step by Step Solution
- Step 1: Write the proportion equation
19,257,153.77 : 28,837,815.23 = 13,472,805.99 : x - Step 2: Convert to fraction form
19,257,153.77/28,837,815.23 = 13,472,805.99/x - Step 3: Cross multiply
19,257,153.77x = 28,837,815.23 × 13,472,805.99 - Step 4: Simplify right side
19,257,153.77x = 388,526,289,835,382.25 - Step 5: Solve for x
x = 388,526,289,835,382.25/19,257,153.77 - Step 6: Final answer
x = 20,175,686.11
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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.