Finding the Fourth Proportional to 42,306,872.58, 58,361,992.56 and 27,631,135.44
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Solution
The fourth proportional to 42,306,872.58, 58,361,992.56 and 27,631,135.44 is: 38,116,930.48
Step by Step Solution
- Step 1: Write the proportion equation
42,306,872.58 : 58,361,992.56 = 27,631,135.44 : x - Step 2: Convert to fraction form
42,306,872.58/58,361,992.56 = 27,631,135.44/x - Step 3: Cross multiply
42,306,872.58x = 58,361,992.56 × 27,631,135.44 - Step 4: Simplify right side
42,306,872.58x = 1,612,608,120,973,632.50 - Step 5: Solve for x
x = 1,612,608,120,973,632.50/42,306,872.58 - Step 6: Final answer
x = 38,116,930.48
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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.