Finding the Fourth Proportional to 4,121,986.14, 5,688,432.05 and 2,286,384.64
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Solution
The fourth proportional to 4,121,986.14, 5,688,432.05 and 2,286,384.64 is: 3,155,261.38
Step by Step Solution
- Step 1: Write the proportion equation
4,121,986.14 : 5,688,432.05 = 2,286,384.64 : x - Step 2: Convert to fraction form
4,121,986.14/5,688,432.05 = 2,286,384.64/x - Step 3: Cross multiply
4,121,986.14x = 5,688,432.05 × 2,286,384.64 - Step 4: Simplify right side
4,121,986.14x = 13,005,943,664,803.71 - Step 5: Solve for x
x = 13,005,943,664,803.71/4,121,986.14 - Step 6: Final answer
x = 3,155,261.38
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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.