Finding the Fourth Proportional to 19,958,344.80, 29,925,707.40 and 10,392,406.80
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Solution
The fourth proportional to 19,958,344.80, 29,925,707.40 and 10,392,406.80 is: 15,582,460.78
Step by Step Solution
- Step 1: Write the proportion equation
19,958,344.80 : 29,925,707.40 = 10,392,406.80 : x - Step 2: Convert to fraction form
19,958,344.80/29,925,707.40 = 10,392,406.80/x - Step 3: Cross multiply
19,958,344.80x = 29,925,707.40 × 10,392,406.80 - Step 4: Simplify right side
19,958,344.80x = 311,000,125,078,570.31 - Step 5: Solve for x
x = 311,000,125,078,570.31/19,958,344.80 - Step 6: Final answer
x = 15,582,460.78
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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.