Finding the Fourth Proportional to 38,852,405.20, 58,278,607.80 and 19,742,107.60
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Solution
The fourth proportional to 38,852,405.20, 58,278,607.80 and 19,742,107.60 is: 29,613,161.40
Step by Step Solution
- Step 1: Write the proportion equation
38,852,405.20 : 58,278,607.80 = 19,742,107.60 : x - Step 2: Convert to fraction form
38,852,405.20/58,278,607.80 = 19,742,107.60/x - Step 3: Cross multiply
38,852,405.20x = 58,278,607.80 × 19,742,107.60 - Step 4: Simplify right side
38,852,405.20x = 1,150,542,545,965,799.25 - Step 5: Solve for x
x = 1,150,542,545,965,799.25/38,852,405.20 - Step 6: Final answer
x = 29,613,161.40
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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.