Finding the Fourth Proportional to 5,178,386.80, 7,761,748.20 and 2,484,002.80
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Solution
The fourth proportional to 5,178,386.80, 7,761,748.20 and 2,484,002.80 is: 3,723,206.67
Step by Step Solution
- Step 1: Write the proportion equation
5,178,386.80 : 7,761,748.20 = 2,484,002.80 : x - Step 2: Convert to fraction form
5,178,386.80/7,761,748.20 = 2,484,002.80/x - Step 3: Cross multiply
5,178,386.80x = 7,761,748.20 × 2,484,002.80 - Step 4: Simplify right side
5,178,386.80x = 19,280,204,261,694.96 - Step 5: Solve for x
x = 19,280,204,261,694.96/5,178,386.80 - Step 6: Final answer
x = 3,723,206.67
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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.