Finding the Fourth Proportional to 7,711,574.64, 11,498,418.38 and 7,499,704.05
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Solution
The fourth proportional to 7,711,574.64, 11,498,418.38 and 7,499,704.05 is: 11,182,506.67
Step by Step Solution
- Step 1: Write the proportion equation
7,711,574.64 : 11,498,418.38 = 7,499,704.05 : x - Step 2: Convert to fraction form
7,711,574.64/11,498,418.38 = 7,499,704.05/x - Step 3: Cross multiply
7,711,574.64x = 11,498,418.38 × 7,499,704.05 - Step 4: Simplify right side
7,711,574.64x = 86,234,734,855,581.92 - Step 5: Solve for x
x = 86,234,734,855,581.92/7,711,574.64 - Step 6: Final answer
x = 11,182,506.67
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.