Finding the Fourth Proportional to 13,320,479.57, 19,979,033.99 and 4,222,664.82
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Solution
The fourth proportional to 13,320,479.57, 19,979,033.99 and 4,222,664.82 is: 6,333,462.96
Step by Step Solution
- Step 1: Write the proportion equation
13,320,479.57 : 19,979,033.99 = 4,222,664.82 : x - Step 2: Convert to fraction form
13,320,479.57/19,979,033.99 = 4,222,664.82/x - Step 3: Cross multiply
13,320,479.57x = 19,979,033.99 × 4,222,664.82 - Step 4: Simplify right side
13,320,479.57x = 84,364,763,946,043.91 - Step 5: Solve for x
x = 84,364,763,946,043.91/13,320,479.57 - Step 6: Final answer
x = 6,333,462.96
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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.