Finding the Fourth Proportional to 5,514,931.68, 8,272,619.96 and 1,921,062.12
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Solution
The fourth proportional to 5,514,931.68, 8,272,619.96 and 1,921,062.12 is: 2,881,670.66
Step by Step Solution
- Step 1: Write the proportion equation
5,514,931.68 : 8,272,619.96 = 1,921,062.12 : x - Step 2: Convert to fraction form
5,514,931.68/8,272,619.96 = 1,921,062.12/x - Step 3: Cross multiply
5,514,931.68x = 8,272,619.96 × 1,921,062.12 - Step 4: Simplify right side
5,514,931.68x = 15,892,216,838,311.92 - Step 5: Solve for x
x = 15,892,216,838,311.92/5,514,931.68 - Step 6: Final answer
x = 2,881,670.66
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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.