Finding the Fourth Proportional to 28,172,685.40, 42,310,349.70 and 24,645,491.80
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Solution
The fourth proportional to 28,172,685.40, 42,310,349.70 and 24,645,491.80 is: 37,013,133.88
Step by Step Solution
- Step 1: Write the proportion equation
28,172,685.40 : 42,310,349.70 = 24,645,491.80 : x - Step 2: Convert to fraction form
28,172,685.40/42,310,349.70 = 24,645,491.80/x - Step 3: Cross multiply
28,172,685.40x = 42,310,349.70 × 24,645,491.80 - Step 4: Simplify right side
28,172,685.40x = 1,042,759,376,586,482.62 - Step 5: Solve for x
x = 1,042,759,376,586,482.62/28,172,685.40 - Step 6: Final answer
x = 37,013,133.88
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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.