Finding the Fourth Proportional to 4,653,670.20, 6,980,505.30 and 3,142,015.80
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Solution
The fourth proportional to 4,653,670.20, 6,980,505.30 and 3,142,015.80 is: 4,713,023.70
Step by Step Solution
- Step 1: Write the proportion equation
4,653,670.20 : 6,980,505.30 = 3,142,015.80 : x - Step 2: Convert to fraction form
4,653,670.20/6,980,505.30 = 3,142,015.80/x - Step 3: Cross multiply
4,653,670.20x = 6,980,505.30 × 3,142,015.80 - Step 4: Simplify right side
4,653,670.20x = 21,932,857,944,583.74 - Step 5: Solve for x
x = 21,932,857,944,583.74/4,653,670.20 - Step 6: Final answer
x = 4,713,023.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.