Finding the Fourth Proportional to 6,288,085.70, 9,432,128.55 and 2,246,509.70
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Solution
The fourth proportional to 6,288,085.70, 9,432,128.55 and 2,246,509.70 is: 3,369,764.55
Step by Step Solution
- Step 1: Write the proportion equation
6,288,085.70 : 9,432,128.55 = 2,246,509.70 : x - Step 2: Convert to fraction form
6,288,085.70/9,432,128.55 = 2,246,509.70/x - Step 3: Cross multiply
6,288,085.70x = 9,432,128.55 × 2,246,509.70 - Step 4: Simplify right side
6,288,085.70x = 21,189,368,279,221.94 - Step 5: Solve for x
x = 21,189,368,279,221.94/6,288,085.70 - Step 6: Final answer
x = 3,369,764.55
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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.