Finding the Fourth Proportional to 12,121,927.16, 18,182,447.86 and 3,602,042.19
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Solution
The fourth proportional to 12,121,927.16, 18,182,447.86 and 3,602,042.19 is: 5,402,931.68
Step by Step Solution
- Step 1: Write the proportion equation
12,121,927.16 : 18,182,447.86 = 3,602,042.19 : x - Step 2: Convert to fraction form
12,121,927.16/18,182,447.86 = 3,602,042.19/x - Step 3: Cross multiply
12,121,927.16x = 18,182,447.86 × 3,602,042.19 - Step 4: Simplify right side
12,121,927.16x = 65,493,944,309,195.21 - Step 5: Solve for x
x = 65,493,944,309,195.21/12,121,927.16 - Step 6: Final answer
x = 5,402,931.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.