Finding the Fourth Proportional to 21,537,130.67, 29,721,589.29 and 11,747,571.92
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Solution
The fourth proportional to 21,537,130.67, 29,721,589.29 and 11,747,571.92 is: 16,211,839.59
Step by Step Solution
- Step 1: Write the proportion equation
21,537,130.67 : 29,721,589.29 = 11,747,571.92 : x - Step 2: Convert to fraction form
21,537,130.67/29,721,589.29 = 11,747,571.92/x - Step 3: Cross multiply
21,537,130.67x = 29,721,589.29 × 11,747,571.92 - Step 4: Simplify right side
21,537,130.67x = 349,156,507,612,368.75 - Step 5: Solve for x
x = 349,156,507,612,368.75/21,537,130.67 - Step 6: Final answer
x = 16,211,839.59
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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.