Finding the Fourth Proportional to 6,427,420.61, 9,641,187.41 and 1,635,115.01
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Solution
The fourth proportional to 6,427,420.61, 9,641,187.41 and 1,635,115.01 is: 2,452,686.88
Step by Step Solution
- Step 1: Write the proportion equation
6,427,420.61 : 9,641,187.41 = 1,635,115.01 : x - Step 2: Convert to fraction form
6,427,420.61/9,641,187.41 = 1,635,115.01/x - Step 3: Cross multiply
6,427,420.61x = 9,641,187.41 × 1,635,115.01 - Step 4: Simplify right side
6,427,420.61x = 15,764,450,191,932.51 - Step 5: Solve for x
x = 15,764,450,191,932.51/6,427,420.61 - Step 6: Final answer
x = 2,452,686.88
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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.