Finding the Fourth Proportional to 12,474,867.68, 17,215,377.36 and 6,968,474.62
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Solution
The fourth proportional to 12,474,867.68, 17,215,377.36 and 6,968,474.62 is: 9,616,528.47
Step by Step Solution
- Step 1: Write the proportion equation
12,474,867.68 : 17,215,377.36 = 6,968,474.62 : x - Step 2: Convert to fraction form
12,474,867.68/17,215,377.36 = 6,968,474.62/x - Step 3: Cross multiply
12,474,867.68x = 17,215,377.36 × 6,968,474.62 - Step 4: Simplify right side
12,474,867.68x = 119,964,920,137,712.38 - Step 5: Solve for x
x = 119,964,920,137,712.38/12,474,867.68 - Step 6: Final answer
x = 9,616,528.47
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Double scale
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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.