Finding the Fourth Proportional to 12,522,129.84, 17,280,121.38 and 6,940,138.49
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Solution
The fourth proportional to 12,522,129.84, 17,280,121.38 and 6,940,138.49 is: 9,577,159.55
Step by Step Solution
- Step 1: Write the proportion equation
12,522,129.84 : 17,280,121.38 = 6,940,138.49 : x - Step 2: Convert to fraction form
12,522,129.84/17,280,121.38 = 6,940,138.49/x - Step 3: Cross multiply
12,522,129.84x = 17,280,121.38 × 6,940,138.49 - Step 4: Simplify right side
12,522,129.84x = 119,926,435,432,159.66 - Step 5: Solve for x
x = 119,926,435,432,159.66/12,522,129.84 - Step 6: Final answer
x = 9,577,159.55
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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.