Finding the Fourth Proportional to 5,693,416.90, 7,856,719.91 and 3,246,815.39
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Solution
The fourth proportional to 5,693,416.90, 7,856,719.91 and 3,246,815.39 is: 4,480,493.79
Step by Step Solution
- Step 1: Write the proportion equation
5,693,416.90 : 7,856,719.91 = 3,246,815.39 : x - Step 2: Convert to fraction form
5,693,416.90/7,856,719.91 = 3,246,815.39/x - Step 3: Cross multiply
5,693,416.90x = 7,856,719.91 × 3,246,815.39 - Step 4: Simplify right side
5,693,416.90x = 25,509,319,063,189.74 - Step 5: Solve for x
x = 25,509,319,063,189.74/5,693,416.90 - Step 6: Final answer
x = 4,480,493.79
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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.