Finding the Fourth Proportional to 12,709,037.23, 17,538,102.75 and 7,202,920.95
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Solution
The fourth proportional to 12,709,037.23, 17,538,102.75 and 7,202,920.95 is: 9,939,821.99
Step by Step Solution
- Step 1: Write the proportion equation
12,709,037.23 : 17,538,102.75 = 7,202,920.95 : x - Step 2: Convert to fraction form
12,709,037.23/17,538,102.75 = 7,202,920.95/x - Step 3: Cross multiply
12,709,037.23x = 17,538,102.75 × 7,202,920.95 - Step 4: Simplify right side
12,709,037.23x = 126,325,567,748,238.58 - Step 5: Solve for x
x = 126,325,567,748,238.58/12,709,037.23 - Step 6: Final answer
x = 9,939,821.99
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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.