Finding the Fourth Proportional to 3,879,869.73, 5,354,637.84 and 2,137,714.26
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Solution
The fourth proportional to 3,879,869.73, 5,354,637.84 and 2,137,714.26 is: 2,950,275.77
Step by Step Solution
- Step 1: Write the proportion equation
3,879,869.73 : 5,354,637.84 = 2,137,714.26 : x - Step 2: Convert to fraction form
3,879,869.73/5,354,637.84 = 2,137,714.26/x - Step 3: Cross multiply
3,879,869.73x = 5,354,637.84 × 2,137,714.26 - Step 4: Simplify right side
3,879,869.73x = 11,446,685,667,703.60 - Step 5: Solve for x
x = 11,446,685,667,703.60/3,879,869.73 - Step 6: Final answer
x = 2,950,275.77
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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.