Finding the Fourth Proportional to 4,137,661.42, 5,712,639.95 and 2,668,227.05
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Solution
The fourth proportional to 4,137,661.42, 5,712,639.95 and 2,668,227.05 is: 3,683,873.30
Step by Step Solution
- Step 1: Write the proportion equation
4,137,661.42 : 5,712,639.95 = 2,668,227.05 : x - Step 2: Convert to fraction form
4,137,661.42/5,712,639.95 = 2,668,227.05/x - Step 3: Cross multiply
4,137,661.42x = 5,712,639.95 × 2,668,227.05 - Step 4: Simplify right side
4,137,661.42x = 15,242,620,441,500.65 - Step 5: Solve for x
x = 15,242,620,441,500.65/4,137,661.42 - Step 6: Final answer
x = 3,683,873.30
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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.