Finding the Fourth Proportional to 5,146,865.40, 7,103,526.06 and 2,855,764.20
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Solution
The fourth proportional to 5,146,865.40, 7,103,526.06 and 2,855,764.20 is: 3,941,427.23
Step by Step Solution
- Step 1: Write the proportion equation
5,146,865.40 : 7,103,526.06 = 2,855,764.20 : x - Step 2: Convert to fraction form
5,146,865.40/7,103,526.06 = 2,855,764.20/x - Step 3: Cross multiply
5,146,865.40x = 7,103,526.06 × 2,855,764.20 - Step 4: Simplify right side
5,146,865.40x = 20,285,995,415,915.05 - Step 5: Solve for x
x = 20,285,995,415,915.05/5,146,865.40 - Step 6: Final answer
x = 3,941,427.23
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1.5x scale
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.