Finding the Fourth Proportional to 21,326,603.41, 29,430,648.85 and 11,537,045
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Solution
The fourth proportional to 21,326,603.41, 29,430,648.85 and 11,537,045 is: 15,921,087.56
Step by Step Solution
- Step 1: Write the proportion equation
21,326,603.41 : 29,430,648.85 = 11,537,045 : x - Step 2: Convert to fraction form
21,326,603.41/29,430,648.85 = 11,537,045/x - Step 3: Cross multiply
21,326,603.41x = 29,430,648.85 × 11,537,045 - Step 4: Simplify right side
21,326,603.41x = 339,542,720,161,648.25 - Step 5: Solve for x
x = 339,542,720,161,648.25/21,326,603.41 - Step 6: Final answer
x = 15,921,087.56
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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.