Finding the Fourth Proportional to 13,631,842.29, 18,811,995.21 and 7,437,028.17
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Solution
The fourth proportional to 13,631,842.29, 18,811,995.21 and 7,437,028.17 is: 10,263,127.71
Step by Step Solution
- Step 1: Write the proportion equation
13,631,842.29 : 18,811,995.21 = 7,437,028.17 : x - Step 2: Convert to fraction form
13,631,842.29/18,811,995.21 = 7,437,028.17/x - Step 3: Cross multiply
13,631,842.29x = 18,811,995.21 × 7,437,028.17 - Step 4: Simplify right side
13,631,842.29x = 139,905,338,310,675.08 - Step 5: Solve for x
x = 139,905,338,310,675.08/13,631,842.29 - Step 6: Final answer
x = 10,263,127.71
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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.