Finding the Fourth Proportional to 30,566,842.21, 42,242,764.53 and 25,051,517.99
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Solution
The fourth proportional to 30,566,842.21, 42,242,764.53 and 25,051,517.99 is: 34,620,696.78
Step by Step Solution
- Step 1: Write the proportion equation
30,566,842.21 : 42,242,764.53 = 25,051,517.99 : x - Step 2: Convert to fraction form
30,566,842.21/42,242,764.53 = 25,051,517.99/x - Step 3: Cross multiply
30,566,842.21x = 42,242,764.53 × 25,051,517.99 - Step 4: Simplify right side
30,566,842.21x = 1,058,245,375,570,628.88 - Step 5: Solve for x
x = 1,058,245,375,570,628.88/30,566,842.21 - Step 6: Final answer
x = 34,620,696.78
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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.