Finding the Fourth Proportional to 13,230,034.20, 19,845,051.30 and 4,719,979.80
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Solution
The fourth proportional to 13,230,034.20, 19,845,051.30 and 4,719,979.80 is: 7,079,969.70
Step by Step Solution
- Step 1: Write the proportion equation
13,230,034.20 : 19,845,051.30 = 4,719,979.80 : x - Step 2: Convert to fraction form
13,230,034.20/19,845,051.30 = 4,719,979.80/x - Step 3: Cross multiply
13,230,034.20x = 19,845,051.30 × 4,719,979.80 - Step 4: Simplify right side
13,230,034.20x = 93,668,241,265,963.73 - Step 5: Solve for x
x = 93,668,241,265,963.73/13,230,034.20 - Step 6: Final answer
x = 7,079,969.70
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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.