Finding the Fourth Proportional to 2,742,120.63, 3,784,124.09 and 1,518,426.09
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Solution
The fourth proportional to 2,742,120.63, 3,784,124.09 and 1,518,426.09 is: 2,095,426.69
Step by Step Solution
- Step 1: Write the proportion equation
2,742,120.63 : 3,784,124.09 = 1,518,426.09 : x - Step 2: Convert to fraction form
2,742,120.63/3,784,124.09 = 1,518,426.09/x - Step 3: Cross multiply
2,742,120.63x = 3,784,124.09 × 1,518,426.09 - Step 4: Simplify right side
2,742,120.63x = 5,745,912,746,053.51 - Step 5: Solve for x
x = 5,745,912,746,053.51/2,742,120.63 - Step 6: Final answer
x = 2,095,426.69
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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.