Finding the Fourth Proportional to 708,589,271.20, 1,062,883,906.80 and 197,986,007.20
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Solution
The fourth proportional to 708,589,271.20, 1,062,883,906.80 and 197,986,007.20 is: 296,979,010.80
Step by Step Solution
- Step 1: Write the proportion equation
708,589,271.20 : 1,062,883,906.80 = 197,986,007.20 : x - Step 2: Convert to fraction form
708,589,271.20/1,062,883,906.80 = 197,986,007.20/x - Step 3: Cross multiply
708,589,271.20x = 1,062,883,906.80 × 197,986,007.20 - Step 4: Simplify right side
708,589,271.20x = 210,436,140,824,468,896 - Step 5: Solve for x
x = 210,436,140,824,468,896/708,589,271.20 - Step 6: Final answer
x = 296,979,010.80
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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.