Finding the Fourth Proportional to 9,342,491.36, 12,892,620.26 and 5,212,276.76
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Solution
The fourth proportional to 9,342,491.36, 12,892,620.26 and 5,212,276.76 is: 7,192,931.99
Step by Step Solution
- Step 1: Write the proportion equation
9,342,491.36 : 12,892,620.26 = 5,212,276.76 : x - Step 2: Convert to fraction form
9,342,491.36/12,892,620.26 = 5,212,276.76/x - Step 3: Cross multiply
9,342,491.36x = 12,892,620.26 × 5,212,276.76 - Step 4: Simplify right side
9,342,491.36x = 67,199,904,954,905.06 - Step 5: Solve for x
x = 67,199,904,954,905.06/9,342,491.36 - Step 6: Final answer
x = 7,192,931.99
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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.