Finding the Fourth Proportional to 3,959,494.36, 5,464,116.54 and 2,148,657.88
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Solution
The fourth proportional to 3,959,494.36, 5,464,116.54 and 2,148,657.88 is: 2,965,155.65
Step by Step Solution
- Step 1: Write the proportion equation
3,959,494.36 : 5,464,116.54 = 2,148,657.88 : x - Step 2: Convert to fraction form
3,959,494.36/5,464,116.54 = 2,148,657.88/x - Step 3: Cross multiply
3,959,494.36x = 5,464,116.54 × 2,148,657.88 - Step 4: Simplify right side
3,959,494.36x = 11,740,517,060,909.33 - Step 5: Solve for x
x = 11,740,517,060,909.33/3,959,494.36 - Step 6: Final answer
x = 2,965,155.65
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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.