Finding the Fourth Proportional to 11,428,459.76, 15,770,232.24 and 6,781,443.92
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Solution
The fourth proportional to 11,428,459.76, 15,770,232.24 and 6,781,443.92 is: 9,357,774.17
Step by Step Solution
- Step 1: Write the proportion equation
11,428,459.76 : 15,770,232.24 = 6,781,443.92 : x - Step 2: Convert to fraction form
11,428,459.76/15,770,232.24 = 6,781,443.92/x - Step 3: Cross multiply
11,428,459.76x = 15,770,232.24 × 6,781,443.92 - Step 4: Simplify right side
11,428,459.76x = 106,944,945,540,935.98 - Step 5: Solve for x
x = 106,944,945,540,935.98/11,428,459.76 - Step 6: Final answer
x = 9,357,774.17
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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.