Finding the Fourth Proportional to 18,153,929.36, 25,051,786.44 and 9,893,821.52
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Solution
The fourth proportional to 18,153,929.36, 25,051,786.44 and 9,893,821.52 is: 13,653,127.04
Step by Step Solution
- Step 1: Write the proportion equation
18,153,929.36 : 25,051,786.44 = 9,893,821.52 : x - Step 2: Convert to fraction form
18,153,929.36/25,051,786.44 = 9,893,821.52/x - Step 3: Cross multiply
18,153,929.36x = 25,051,786.44 × 9,893,821.52 - Step 4: Simplify right side
18,153,929.36x = 247,857,903,794,516.19 - Step 5: Solve for x
x = 247,857,903,794,516.19/18,153,929.36 - Step 6: Final answer
x = 13,653,127.04
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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.