Finding the Fourth Proportional to 21,938,351.58, 30,274,897.97 and 12,148,784.12
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Solution
The fourth proportional to 21,938,351.58, 30,274,897.97 and 12,148,784.12 is: 16,765,307.02
Step by Step Solution
- Step 1: Write the proportion equation
21,938,351.58 : 30,274,897.97 = 12,148,784.12 : x - Step 2: Convert to fraction form
21,938,351.58/30,274,897.97 = 12,148,784.12/x - Step 3: Cross multiply
21,938,351.58x = 30,274,897.97 × 12,148,784.12 - Step 4: Simplify right side
21,938,351.58x = 367,803,199,798,615.44 - Step 5: Solve for x
x = 367,803,199,798,615.44/21,938,351.58 - Step 6: Final answer
x = 16,765,307.02
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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.