Finding the Fourth Proportional to 7,266,521.80, 10,899,782.70 and 7,109,057.80
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Solution
The fourth proportional to 7,266,521.80, 10,899,782.70 and 7,109,057.80 is: 10,663,586.70
Step by Step Solution
- Step 1: Write the proportion equation
7,266,521.80 : 10,899,782.70 = 7,109,057.80 : x - Step 2: Convert to fraction form
7,266,521.80/10,899,782.70 = 7,109,057.80/x - Step 3: Cross multiply
7,266,521.80x = 10,899,782.70 × 7,109,057.80 - Step 4: Simplify right side
7,266,521.80x = 77,487,185,221,740.05 - Step 5: Solve for x
x = 77,487,185,221,740.05/7,266,521.80 - Step 6: Final answer
x = 10,663,586.70
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Similar ratio
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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.