Finding the Fourth Proportional to 83,414,268.80, 125,121,403.20 and 80,013,046.40
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Solution
The fourth proportional to 83,414,268.80, 125,121,403.20 and 80,013,046.40 is: 120,019,569.60
Step by Step Solution
- Step 1: Write the proportion equation
83,414,268.80 : 125,121,403.20 = 80,013,046.40 : x - Step 2: Convert to fraction form
83,414,268.80/125,121,403.20 = 80,013,046.40/x - Step 3: Cross multiply
83,414,268.80x = 125,121,403.20 × 80,013,046.40 - Step 4: Simplify right side
83,414,268.80x = 10,011,344,639,874,710 - Step 5: Solve for x
x = 10,011,344,639,874,710/83,414,268.80 - Step 6: Final answer
x = 120,019,569.60
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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.