Finding the Fourth Proportional to 40,025,862.12, 55,235,736.95 and 21,691,147.62
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Solution
The fourth proportional to 40,025,862.12, 55,235,736.95 and 21,691,147.62 is: 29,933,809.31
Step by Step Solution
- Step 1: Write the proportion equation
40,025,862.12 : 55,235,736.95 = 21,691,147.62 : x - Step 2: Convert to fraction form
40,025,862.12/55,235,736.95 = 21,691,147.62/x - Step 3: Cross multiply
40,025,862.12x = 55,235,736.95 × 21,691,147.62 - Step 4: Simplify right side
40,025,862.12x = 1,198,126,523,973,483 - Step 5: Solve for x
x = 1,198,126,523,973,483/40,025,862.12 - Step 6: Final answer
x = 29,933,809.31
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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.