Finding the Fourth Proportional to 18,674,772.30, 27,996,606.45 and 7,900,346.70
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Solution
The fourth proportional to 18,674,772.30, 27,996,606.45 and 7,900,346.70 is: 11,843,940.79
Step by Step Solution
- Step 1: Write the proportion equation
18,674,772.30 : 27,996,606.45 = 7,900,346.70 : x - Step 2: Convert to fraction form
18,674,772.30/27,996,606.45 = 7,900,346.70/x - Step 3: Cross multiply
18,674,772.30x = 27,996,606.45 × 7,900,346.70 - Step 4: Simplify right side
18,674,772.30x = 221,182,897,378,456.22 - Step 5: Solve for x
x = 221,182,897,378,456.22/18,674,772.30 - Step 6: Final answer
x = 11,843,940.79
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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.