Finding the Fourth Proportional to 4,128,358.10, 6,193,521.30 and 1,996,689.20
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Solution
The fourth proportional to 4,128,358.10, 6,193,521.30 and 1,996,689.20 is: 2,995,509.79
Step by Step Solution
- Step 1: Write the proportion equation
4,128,358.10 : 6,193,521.30 = 1,996,689.20 : x - Step 2: Convert to fraction form
4,128,358.10/6,193,521.30 = 1,996,689.20/x - Step 3: Cross multiply
4,128,358.10x = 6,193,521.30 × 1,996,689.20 - Step 4: Simplify right side
4,128,358.10x = 12,366,537,089,679.96 - Step 5: Solve for x
x = 12,366,537,089,679.96/4,128,358.10 - Step 6: Final answer
x = 2,995,509.79
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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.