Finding the Fourth Proportional to 19,172,833.48, 26,459,163.11 and 11,339,060.99
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Solution
The fourth proportional to 19,172,833.48, 26,459,163.11 and 11,339,060.99 is: 15,648,290.30
Step by Step Solution
- Step 1: Write the proportion equation
19,172,833.48 : 26,459,163.11 = 11,339,060.99 : x - Step 2: Convert to fraction form
19,172,833.48/26,459,163.11 = 11,339,060.99/x - Step 3: Cross multiply
19,172,833.48x = 26,459,163.11 × 11,339,060.99 - Step 4: Simplify right side
19,172,833.48x = 300,022,064,191,952.81 - Step 5: Solve for x
x = 300,022,064,191,952.81/19,172,833.48 - Step 6: Final answer
x = 15,648,290.30
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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.