Finding the Fourth Proportional to 12,947,165.24, 17,865,815.99 and 7,145,572.41
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Solution
The fourth proportional to 12,947,165.24, 17,865,815.99 and 7,145,572.41 is: 9,860,187.88
Step by Step Solution
- Step 1: Write the proportion equation
12,947,165.24 : 17,865,815.99 = 7,145,572.41 : x - Step 2: Convert to fraction form
12,947,165.24/17,865,815.99 = 7,145,572.41/x - Step 3: Cross multiply
12,947,165.24x = 17,865,815.99 × 7,145,572.41 - Step 4: Simplify right side
12,947,165.24x = 127,661,481,784,552.97 - Step 5: Solve for x
x = 127,661,481,784,552.97/12,947,165.24 - Step 6: Final answer
x = 9,860,187.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.