Finding the Fourth Proportional to 11,198,998.52, 15,459,395.09 and 7,530,041.76
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Solution
The fourth proportional to 11,198,998.52, 15,459,395.09 and 7,530,041.76 is: 10,394,669.70
Step by Step Solution
- Step 1: Write the proportion equation
11,198,998.52 : 15,459,395.09 = 7,530,041.76 : x - Step 2: Convert to fraction form
11,198,998.52/15,459,395.09 = 7,530,041.76/x - Step 3: Cross multiply
11,198,998.52x = 15,459,395.09 × 7,530,041.76 - Step 4: Simplify right side
11,198,998.52x = 116,409,890,612,038.95 - Step 5: Solve for x
x = 116,409,890,612,038.95/11,198,998.52 - Step 6: Final answer
x = 10,394,669.70
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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.