Finding the Fourth Proportional to 23,128,783.66, 31,917,758.97 and 12,673,138.53
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Solution
The fourth proportional to 23,128,783.66, 31,917,758.97 and 12,673,138.53 is: 17,488,951.73
Step by Step Solution
- Step 1: Write the proportion equation
23,128,783.66 : 31,917,758.97 = 12,673,138.53 : x - Step 2: Convert to fraction form
23,128,783.66/31,917,758.97 = 12,673,138.53/x - Step 3: Cross multiply
23,128,783.66x = 31,917,758.97 × 12,673,138.53 - Step 4: Simplify right side
23,128,783.66x = 404,498,180,993,960.06 - Step 5: Solve for x
x = 404,498,180,993,960.06/23,128,783.66 - Step 6: Final answer
x = 17,488,951.73
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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.