Finding the Fourth Proportional to 7,221,729.24, 9,960,175.24 and 6,348,697.28
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Solution
The fourth proportional to 7,221,729.24, 9,960,175.24 and 6,348,697.28 is: 8,756,093.63
Step by Step Solution
- Step 1: Write the proportion equation
7,221,729.24 : 9,960,175.24 = 6,348,697.28 : x - Step 2: Convert to fraction form
7,221,729.24/9,960,175.24 = 6,348,697.28/x - Step 3: Cross multiply
7,221,729.24x = 9,960,175.24 × 6,348,697.28 - Step 4: Simplify right side
7,221,729.24x = 63,234,137,435,115.65 - Step 5: Solve for x
x = 63,234,137,435,115.65/7,221,729.24 - Step 6: Final answer
x = 8,756,093.63
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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.