Finding the Fourth Proportional to 7,156,781.37, 9,875,620.92 and 4,255,611.66
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Solution
The fourth proportional to 7,156,781.37, 9,875,620.92 and 4,255,611.66 is: 5,872,305.63
Step by Step Solution
- Step 1: Write the proportion equation
7,156,781.37 : 9,875,620.92 = 4,255,611.66 : x - Step 2: Convert to fraction form
7,156,781.37/9,875,620.92 = 4,255,611.66/x - Step 3: Cross multiply
7,156,781.37x = 9,875,620.92 × 4,255,611.66 - Step 4: Simplify right side
7,156,781.37x = 42,026,807,536,891.93 - Step 5: Solve for x
x = 42,026,807,536,891.93/7,156,781.37 - Step 6: Final answer
x = 5,872,305.63
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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.