Finding the Fourth Proportional to 13,285,986.56, 18,334,717.44 and 7,484,837.84
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Solution
The fourth proportional to 13,285,986.56, 18,334,717.44 and 7,484,837.84 is: 10,329,107.76
Step by Step Solution
- Step 1: Write the proportion equation
13,285,986.56 : 18,334,717.44 = 7,484,837.84 : x - Step 2: Convert to fraction form
13,285,986.56/18,334,717.44 = 7,484,837.84/x - Step 3: Cross multiply
13,285,986.56x = 18,334,717.44 × 7,484,837.84 - Step 4: Simplify right side
13,285,986.56x = 137,232,386,880,619.94 - Step 5: Solve for x
x = 137,232,386,880,619.94/13,285,986.56 - Step 6: Final answer
x = 10,329,107.76
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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.