Finding the Fourth Proportional to 39,872,081, 55,023,493.92 and 21,537,366.68
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Solution
The fourth proportional to 39,872,081, 55,023,493.92 and 21,537,366.68 is: 29,721,577.98
Step by Step Solution
- Step 1: Write the proportion equation
39,872,081 : 55,023,493.92 = 21,537,366.68 : x - Step 2: Convert to fraction form
39,872,081/55,023,493.92 = 21,537,366.68/x - Step 3: Cross multiply
39,872,081x = 55,023,493.92 × 21,537,366.68 - Step 4: Simplify right side
39,872,081x = 1,185,061,164,569,790.50 - Step 5: Solve for x
x = 1,185,061,164,569,790.50/39,872,081 - Step 6: Final answer
x = 29,721,577.98
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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.