Finding the Fourth Proportional to 5,101,459.76, 7,040,332.80 and 2,809,619.84
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Solution
The fourth proportional to 5,101,459.76, 7,040,332.80 and 2,809,619.84 is: 3,877,450.70
Step by Step Solution
- Step 1: Write the proportion equation
5,101,459.76 : 7,040,332.80 = 2,809,619.84 : x - Step 2: Convert to fraction form
5,101,459.76/7,040,332.80 = 2,809,619.84/x - Step 3: Cross multiply
5,101,459.76x = 7,040,332.80 × 2,809,619.84 - Step 4: Simplify right side
5,101,459.76x = 19,780,658,679,881.09 - Step 5: Solve for x
x = 19,780,658,679,881.09/5,101,459.76 - Step 6: Final answer
x = 3,877,450.70
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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.