Finding the Fourth Proportional to 11,135,655.90, 16,704,745.56 and 9,991,388.07
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Solution
The fourth proportional to 11,135,655.90, 16,704,745.56 and 9,991,388.07 is: 14,988,214.17
Step by Step Solution
- Step 1: Write the proportion equation
11,135,655.90 : 16,704,745.56 = 9,991,388.07 : x - Step 2: Convert to fraction form
11,135,655.90/16,704,745.56 = 9,991,388.07/x - Step 3: Cross multiply
11,135,655.90x = 16,704,745.56 × 9,991,388.07 - Step 4: Simplify right side
11,135,655.90x = 166,903,595,500,569.47 - Step 5: Solve for x
x = 166,903,595,500,569.47/11,135,655.90 - Step 6: Final answer
x = 14,988,214.17
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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.