Finding the Fourth Proportional to 31,189,673.40, 46,777,511.58 and 15,007,360.68
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Solution
The fourth proportional to 31,189,673.40, 46,777,511.58 and 15,007,360.68 is: 22,507,673.58
Step by Step Solution
- Step 1: Write the proportion equation
31,189,673.40 : 46,777,511.58 = 15,007,360.68 : x - Step 2: Convert to fraction form
31,189,673.40/46,777,511.58 = 15,007,360.68/x - Step 3: Cross multiply
31,189,673.40x = 46,777,511.58 × 15,007,360.68 - Step 4: Simplify right side
31,189,673.40x = 702,006,987,993,936.62 - Step 5: Solve for x
x = 702,006,987,993,936.62/31,189,673.40 - Step 6: Final answer
x = 22,507,673.58
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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.