Finding the Fourth Proportional to 10,939,474.80, 16,423,986.60 and 6,395,180.40
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Solution
The fourth proportional to 10,939,474.80, 16,423,986.60 and 6,395,180.40 is: 9,601,407.66
Step by Step Solution
- Step 1: Write the proportion equation
10,939,474.80 : 16,423,986.60 = 6,395,180.40 : x - Step 2: Convert to fraction form
10,939,474.80/16,423,986.60 = 6,395,180.40/x - Step 3: Cross multiply
10,939,474.80x = 16,423,986.60 × 6,395,180.40 - Step 4: Simplify right side
10,939,474.80x = 105,034,357,194,182.64 - Step 5: Solve for x
x = 105,034,357,194,182.64/10,939,474.80 - Step 6: Final answer
x = 9,601,407.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.