Finding the Fourth Proportional to 6,721,134.12, 9,275,719.98 and 3,821,437.80
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Solution
The fourth proportional to 6,721,134.12, 9,275,719.98 and 3,821,437.80 is: 5,273,899.66
Step by Step Solution
- Step 1: Write the proportion equation
6,721,134.12 : 9,275,719.98 = 3,821,437.80 : x - Step 2: Convert to fraction form
6,721,134.12/9,275,719.98 = 3,821,437.80/x - Step 3: Cross multiply
6,721,134.12x = 9,275,719.98 × 3,821,437.80 - Step 4: Simplify right side
6,721,134.12x = 35,446,586,953,787.24 - Step 5: Solve for x
x = 35,446,586,953,787.24/6,721,134.12 - Step 6: Final answer
x = 5,273,899.66
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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.