Finding the Fourth Proportional to 6,128,268.68, 8,456,686.80 and 3,514,637.90
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Solution
The fourth proportional to 6,128,268.68, 8,456,686.80 and 3,514,637.90 is: 4,850,014.50
Step by Step Solution
- Step 1: Write the proportion equation
6,128,268.68 : 8,456,686.80 = 3,514,637.90 : x - Step 2: Convert to fraction form
6,128,268.68/8,456,686.80 = 3,514,637.90/x - Step 3: Cross multiply
6,128,268.68x = 8,456,686.80 × 3,514,637.90 - Step 4: Simplify right side
6,128,268.68x = 29,722,191,935,709.72 - Step 5: Solve for x
x = 29,722,191,935,709.72/6,128,268.68 - Step 6: Final answer
x = 4,850,014.50
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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.