Finding the Fourth Proportional to 941,772,163.20, 1,412,658,244.80 and 286,717,986.60
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Solution
The fourth proportional to 941,772,163.20, 1,412,658,244.80 and 286,717,986.60 is: 430,076,979.90
Step by Step Solution
- Step 1: Write the proportion equation
941,772,163.20 : 1,412,658,244.80 = 286,717,986.60 : x - Step 2: Convert to fraction form
941,772,163.20/1,412,658,244.80 = 286,717,986.60/x - Step 3: Cross multiply
941,772,163.20x = 1,412,658,244.80 × 286,717,986.60 - Step 4: Simplify right side
941,772,163.20x = 405,034,527,702,945,920 - Step 5: Solve for x
x = 405,034,527,702,945,920/941,772,163.20 - Step 6: Final answer
x = 430,076,979.90
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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.