Finding the Fourth Proportional to 11,878,309.97, 16,392,067.76 and 6,445,801.97
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Solution
The fourth proportional to 11,878,309.97, 16,392,067.76 and 6,445,801.97 is: 8,895,206.72
Step by Step Solution
- Step 1: Write the proportion equation
11,878,309.97 : 16,392,067.76 = 6,445,801.97 : x - Step 2: Convert to fraction form
11,878,309.97/16,392,067.76 = 6,445,801.97/x - Step 3: Cross multiply
11,878,309.97x = 16,392,067.76 × 6,445,801.97 - Step 4: Simplify right side
11,878,309.97x = 105,660,022,701,508.59 - Step 5: Solve for x
x = 105,660,022,701,508.59/11,878,309.97 - Step 6: Final answer
x = 8,895,206.72
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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.