Finding the Fourth Proportional to 18,503,804.76, 25,537,921.55 and 10,661,815.09
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Solution
The fourth proportional to 18,503,804.76, 25,537,921.55 and 10,661,815.09 is: 14,714,843.83
Step by Step Solution
- Step 1: Write the proportion equation
18,503,804.76 : 25,537,921.55 = 10,661,815.09 : x - Step 2: Convert to fraction form
18,503,804.76/25,537,921.55 = 10,661,815.09/x - Step 3: Cross multiply
18,503,804.76x = 25,537,921.55 × 10,661,815.09 - Step 4: Simplify right side
18,503,804.76x = 272,280,597,349,026.19 - Step 5: Solve for x
x = 272,280,597,349,026.19/18,503,804.76 - Step 6: Final answer
x = 14,714,843.83
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1.5x scale
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.