Finding the Fourth Proportional to 12,128,801.97, 16,739,214.47 and 6,903,080.76
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Solution
The fourth proportional to 12,128,801.97, 16,739,214.47 and 6,903,080.76 is: 9,527,086.82
Step by Step Solution
- Step 1: Write the proportion equation
12,128,801.97 : 16,739,214.47 = 6,903,080.76 : x - Step 2: Convert to fraction form
12,128,801.97/16,739,214.47 = 6,903,080.76/x - Step 3: Cross multiply
12,128,801.97x = 16,739,214.47 × 6,903,080.76 - Step 4: Simplify right side
12,128,801.97x = 115,552,149,345,370.59 - Step 5: Solve for x
x = 115,552,149,345,370.59/12,128,801.97 - Step 6: Final answer
x = 9,527,086.82
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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.