Finding the Fourth Proportional to 7,623,134.75, 11,434,849.43 and 1,865,918.75
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Solution
The fourth proportional to 7,623,134.75, 11,434,849.43 and 1,865,918.75 is: 2,798,914.17
Step by Step Solution
- Step 1: Write the proportion equation
7,623,134.75 : 11,434,849.43 = 1,865,918.75 : x - Step 2: Convert to fraction form
7,623,134.75/11,434,849.43 = 1,865,918.75/x - Step 3: Cross multiply
7,623,134.75x = 11,434,849.43 × 1,865,918.75 - Step 4: Simplify right side
7,623,134.75x = 21,336,499,888,359.97 - Step 5: Solve for x
x = 21,336,499,888,359.97/7,623,134.75 - Step 6: Final answer
x = 2,798,914.17
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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.