Finding the Fourth Proportional to 3,717,776.87, 5,127,639.55 and 2,689,143.29
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Solution
The fourth proportional to 3,717,776.87, 5,127,639.55 and 2,689,143.29 is: 3,708,925.51
Step by Step Solution
- Step 1: Write the proportion equation
3,717,776.87 : 5,127,639.55 = 2,689,143.29 : x - Step 2: Convert to fraction form
3,717,776.87/5,127,639.55 = 2,689,143.29/x - Step 3: Cross multiply
3,717,776.87x = 5,127,639.55 × 2,689,143.29 - Step 4: Simplify right side
3,717,776.87x = 13,788,957,457,060.06 - Step 5: Solve for x
x = 13,788,957,457,060.06/3,717,776.87 - Step 6: Final answer
x = 3,708,925.51
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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.