Finding the Fourth Proportional to 18,428,934.96, 25,430,782.41 and 10,169,063.64
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Solution
The fourth proportional to 18,428,934.96, 25,430,782.41 and 10,169,063.64 is: 14,032,674.45
Step by Step Solution
- Step 1: Write the proportion equation
18,428,934.96 : 25,430,782.41 = 10,169,063.64 : x - Step 2: Convert to fraction form
18,428,934.96/25,430,782.41 = 10,169,063.64/x - Step 3: Cross multiply
18,428,934.96x = 25,430,782.41 × 10,169,063.64 - Step 4: Simplify right side
18,428,934.96x = 258,607,244,742,282.59 - Step 5: Solve for x
x = 258,607,244,742,282.59/18,428,934.96 - Step 6: Final answer
x = 14,032,674.45
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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.