Finding the Fourth Proportional to 284,251,858.40, 426,313,329.30 and 128,702,980.53
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Solution
The fourth proportional to 284,251,858.40, 426,313,329.30 and 128,702,980.53 is: 193,025,285.49
Step by Step Solution
- Step 1: Write the proportion equation
284,251,858.40 : 426,313,329.30 = 128,702,980.53 : x - Step 2: Convert to fraction form
284,251,858.40/426,313,329.30 = 128,702,980.53/x - Step 3: Cross multiply
284,251,858.40x = 426,313,329.30 × 128,702,980.53 - Step 4: Simplify right side
284,251,858.40x = 54,867,796,120,577,384 - Step 5: Solve for x
x = 54,867,796,120,577,384/284,251,858.40 - Step 6: Final answer
x = 193,025,285.49
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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.