Finding the Fourth Proportional to 522,398,828.88, 720,888,769.08 and 284,244,993.09
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Solution
The fourth proportional to 522,398,828.88, 720,888,769.08 and 284,244,993.09 is: 392,246,329.54
Step by Step Solution
- Step 1: Write the proportion equation
522,398,828.88 : 720,888,769.08 = 284,244,993.09 : x - Step 2: Convert to fraction form
522,398,828.88/720,888,769.08 = 284,244,993.09/x - Step 3: Cross multiply
522,398,828.88x = 720,888,769.08 × 284,244,993.09 - Step 4: Simplify right side
522,398,828.88x = 204,909,023,185,803,200 - Step 5: Solve for x
x = 204,909,023,185,803,200/522,398,828.88 - Step 6: Final answer
x = 392,246,329.54
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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.