Finding the Fourth Proportional to 19,159,990.80, 28,744,578.88 and 6,380,606.24
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Solution
The fourth proportional to 19,159,990.80, 28,744,578.88 and 6,380,606.24 is: 9,572,438.80
Step by Step Solution
- Step 1: Write the proportion equation
19,159,990.80 : 28,744,578.88 = 6,380,606.24 : x - Step 2: Convert to fraction form
19,159,990.80/28,744,578.88 = 6,380,606.24/x - Step 3: Cross multiply
19,159,990.80x = 28,744,578.88 × 6,380,606.24 - Step 4: Simplify right side
19,159,990.80x = 183,407,839,367,900.22 - Step 5: Solve for x
x = 183,407,839,367,900.22/19,159,990.80 - Step 6: Final answer
x = 9,572,438.80
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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.