Finding the Fourth Proportional to 4,642,970.37, 6,406,986.87 and 2,577,879.21
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Solution
The fourth proportional to 4,642,970.37, 6,406,986.87 and 2,577,879.21 is: 3,557,299.95
Step by Step Solution
- Step 1: Write the proportion equation
4,642,970.37 : 6,406,986.87 = 2,577,879.21 : x - Step 2: Convert to fraction form
4,642,970.37/6,406,986.87 = 2,577,879.21/x - Step 3: Cross multiply
4,642,970.37x = 6,406,986.87 × 2,577,879.21 - Step 4: Simplify right side
4,642,970.37x = 16,516,438,250,915.97 - Step 5: Solve for x
x = 16,516,438,250,915.97/4,642,970.37 - Step 6: Final answer
x = 3,557,299.95
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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.