Finding the Fourth Proportional to 19,681,873.20, 27,160,996.56 and 10,980,045.84
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Solution
The fourth proportional to 19,681,873.20, 27,160,996.56 and 10,980,045.84 is: 15,152,469.70
Step by Step Solution
- Step 1: Write the proportion equation
19,681,873.20 : 27,160,996.56 = 10,980,045.84 : x - Step 2: Convert to fraction form
19,681,873.20/27,160,996.56 = 10,980,045.84/x - Step 3: Cross multiply
19,681,873.20x = 27,160,996.56 × 10,980,045.84 - Step 4: Simplify right side
19,681,873.20x = 298,228,987,288,882.31 - Step 5: Solve for x
x = 298,228,987,288,882.31/19,681,873.20 - Step 6: Final answer
x = 15,152,469.70
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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.