Finding the Fourth Proportional to 873,466,230.81, 1,205,539,092.36 and 516,219,420
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Solution
The fourth proportional to 873,466,230.81, 1,205,539,092.36 and 516,219,420 is: 712,474,814.82
Step by Step Solution
- Step 1: Write the proportion equation
873,466,230.81 : 1,205,539,092.36 = 516,219,420 : x - Step 2: Convert to fraction form
873,466,230.81/1,205,539,092.36 = 516,219,420/x - Step 3: Cross multiply
873,466,230.81x = 1,205,539,092.36 × 516,219,420 - Step 4: Simplify right side
873,466,230.81x = 622,322,691,045,405,568 - Step 5: Solve for x
x = 622,322,691,045,405,568/873,466,230.81 - Step 6: Final answer
x = 712,474,814.82
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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.