Finding the Fourth Proportional to 15,739,441.58, 21,720,473.58 and 9,125,315.39
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Solution
The fourth proportional to 15,739,441.58, 21,720,473.58 and 9,125,315.39 is: 12,592,960.86
Step by Step Solution
- Step 1: Write the proportion equation
15,739,441.58 : 21,720,473.58 = 9,125,315.39 : x - Step 2: Convert to fraction form
15,739,441.58/21,720,473.58 = 9,125,315.39/x - Step 3: Cross multiply
15,739,441.58x = 21,720,473.58 × 9,125,315.39 - Step 4: Simplify right side
15,739,441.58x = 198,206,171,729,060 - Step 5: Solve for x
x = 198,206,171,729,060/15,739,441.58 - Step 6: Final answer
x = 12,592,960.86
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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.