Finding the Fourth Proportional to 3,875,818.74, 5,348,590.83 and 2,156,910.18
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Solution
The fourth proportional to 3,875,818.74, 5,348,590.83 and 2,156,910.18 is: 2,976,514.33
Step by Step Solution
- Step 1: Write the proportion equation
3,875,818.74 : 5,348,590.83 = 2,156,910.18 : x - Step 2: Convert to fraction form
3,875,818.74/5,348,590.83 = 2,156,910.18/x - Step 3: Cross multiply
3,875,818.74x = 5,348,590.83 × 2,156,910.18 - Step 4: Simplify right side
3,875,818.74x = 11,536,430,009,881.65 - Step 5: Solve for x
x = 11,536,430,009,881.65/3,875,818.74 - Step 6: Final answer
x = 2,976,514.33
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1.5x scale
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.