Finding the Fourth Proportional to 201,025,315.70, 280,861,485.70 and 201,025,315.70
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Solution
The fourth proportional to 201,025,315.70, 280,861,485.70 and 201,025,315.70 is: 280,861,485.70
Step by Step Solution
- Step 1: Write the proportion equation
201,025,315.70 : 280,861,485.70 = 201,025,315.70 : x - Step 2: Convert to fraction form
201,025,315.70/280,861,485.70 = 201,025,315.70/x - Step 3: Cross multiply
201,025,315.70x = 280,861,485.70 × 201,025,315.70 - Step 4: Simplify right side
201,025,315.70x = 56,460,268,830,813,528 - Step 5: Solve for x
x = 56,460,268,830,813,528/201,025,315.70 - Step 6: Final answer
x = 280,861,485.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.