Finding the Fourth Proportional to 5,443,611.80, 8,165,417.70 and 1,853,432.60
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Solution
The fourth proportional to 5,443,611.80, 8,165,417.70 and 1,853,432.60 is: 2,780,148.90
Step by Step Solution
- Step 1: Write the proportion equation
5,443,611.80 : 8,165,417.70 = 1,853,432.60 : x - Step 2: Convert to fraction form
5,443,611.80/8,165,417.70 = 1,853,432.60/x - Step 3: Cross multiply
5,443,611.80x = 8,165,417.70 × 1,853,432.60 - Step 4: Simplify right side
5,443,611.80x = 15,134,051,357,797.02 - Step 5: Solve for x
x = 15,134,051,357,797.02/5,443,611.80 - Step 6: Final answer
x = 2,780,148.90
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1.5x scale
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.