Finding the Fourth Proportional to 13,197,959.64, 18,213,898.14 and 7,398,604.26
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Solution
The fourth proportional to 13,197,959.64, 18,213,898.14 and 7,398,604.26 is: 10,210,474.05
Step by Step Solution
- Step 1: Write the proportion equation
13,197,959.64 : 18,213,898.14 = 7,398,604.26 : x - Step 2: Convert to fraction form
13,197,959.64/18,213,898.14 = 7,398,604.26/x - Step 3: Cross multiply
13,197,959.64x = 18,213,898.14 × 7,398,604.26 - Step 4: Simplify right side
13,197,959.64x = 134,757,424,369,810.08 - Step 5: Solve for x
x = 134,757,424,369,810.08/13,197,959.64 - Step 6: Final answer
x = 10,210,474.05
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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.