Finding the Fourth Proportional to 18,486,388.37, 27,732,106.01 and 7,701,166.98
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Solution
The fourth proportional to 18,486,388.37, 27,732,106.01 and 7,701,166.98 is: 11,552,801.71
Step by Step Solution
- Step 1: Write the proportion equation
18,486,388.37 : 27,732,106.01 = 7,701,166.98 : x - Step 2: Convert to fraction form
18,486,388.37/27,732,106.01 = 7,701,166.98/x - Step 3: Cross multiply
18,486,388.37x = 27,732,106.01 × 7,701,166.98 - Step 4: Simplify right side
18,486,388.37x = 213,569,579,109,324.47 - Step 5: Solve for x
x = 213,569,579,109,324.47/18,486,388.37 - Step 6: Final answer
x = 11,552,801.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.