Finding the Fourth Proportional to 3,875,806.74, 5,348,574.27 and 2,156,898.18
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Solution
The fourth proportional to 3,875,806.74, 5,348,574.27 and 2,156,898.18 is: 2,976,497.77
Step by Step Solution
- Step 1: Write the proportion equation
3,875,806.74 : 5,348,574.27 = 2,156,898.18 : x - Step 2: Convert to fraction form
3,875,806.74/5,348,574.27 = 2,156,898.18/x - Step 3: Cross multiply
3,875,806.74x = 5,348,574.27 × 2,156,898.18 - Step 4: Simplify right side
3,875,806.74x = 11,536,330,108,557.83 - Step 5: Solve for x
x = 11,536,330,108,557.83/3,875,806.74 - Step 6: Final answer
x = 2,976,497.77
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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.