Finding the Fourth Proportional to 16,145,965.26, 22,286,831.31 and 9,621,640.62
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Solution
The fourth proportional to 16,145,965.26, 22,286,831.31 and 9,621,640.62 is: 13,281,081.56
Step by Step Solution
- Step 1: Write the proportion equation
16,145,965.26 : 22,286,831.31 = 9,621,640.62 : x - Step 2: Convert to fraction form
16,145,965.26/22,286,831.31 = 9,621,640.62/x - Step 3: Cross multiply
16,145,965.26x = 22,286,831.31 × 9,621,640.62 - Step 4: Simplify right side
16,145,965.26x = 214,435,881,423,383.78 - Step 5: Solve for x
x = 214,435,881,423,383.78/16,145,965.26 - Step 6: Final answer
x = 13,281,081.56
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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.