Finding the Fourth Proportional to 4,128,356.10, 6,193,518.30 and 1,996,687.20
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Solution
The fourth proportional to 4,128,356.10, 6,193,518.30 and 1,996,687.20 is: 2,995,506.79
Step by Step Solution
- Step 1: Write the proportion equation
4,128,356.10 : 6,193,518.30 = 1,996,687.20 : x - Step 2: Convert to fraction form
4,128,356.10/6,193,518.30 = 1,996,687.20/x - Step 3: Cross multiply
4,128,356.10x = 6,193,518.30 × 1,996,687.20 - Step 4: Simplify right side
4,128,356.10x = 12,366,518,712,575.76 - Step 5: Solve for x
x = 12,366,518,712,575.76/4,128,356.10 - Step 6: Final answer
x = 2,995,506.79
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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.