Finding the Fourth Proportional to 18,214,308.91, 27,313,686.37 and 10,543,248.70
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Solution
The fourth proportional to 18,214,308.91, 27,313,686.37 and 10,543,248.70 is: 15,810,371.38
Step by Step Solution
- Step 1: Write the proportion equation
18,214,308.91 : 27,313,686.37 = 10,543,248.70 : x - Step 2: Convert to fraction form
18,214,308.91/27,313,686.37 = 10,543,248.70/x - Step 3: Cross multiply
18,214,308.91x = 27,313,686.37 × 10,543,248.70 - Step 4: Simplify right side
18,214,308.91x = 287,974,988,257,605.06 - Step 5: Solve for x
x = 287,974,988,257,605.06/18,214,308.91 - Step 6: Final answer
x = 15,810,371.38
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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.