Finding the Fourth Proportional to 27,129,974.80, 40,742,201.40 and 14,375,390.80
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Solution
The fourth proportional to 27,129,974.80, 40,742,201.40 and 14,375,390.80 is: 21,588,116.89
Step by Step Solution
- Step 1: Write the proportion equation
27,129,974.80 : 40,742,201.40 = 14,375,390.80 : x - Step 2: Convert to fraction form
27,129,974.80/40,742,201.40 = 14,375,390.80/x - Step 3: Cross multiply
27,129,974.80x = 40,742,201.40 × 14,375,390.80 - Step 4: Simplify right side
27,129,974.80x = 585,685,067,177,307.12 - Step 5: Solve for x
x = 585,685,067,177,307.12/27,129,974.80 - Step 6: Final answer
x = 21,588,116.89
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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.