Finding the Fourth Proportional to 28,794,974.42, 39,737,205.14 and 15,742,233.96
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Solution
The fourth proportional to 28,794,974.42, 39,737,205.14 and 15,742,233.96 is: 21,724,359.64
Step by Step Solution
- Step 1: Write the proportion equation
28,794,974.42 : 39,737,205.14 = 15,742,233.96 : x - Step 2: Convert to fraction form
28,794,974.42/39,737,205.14 = 15,742,233.96/x - Step 3: Cross multiply
28,794,974.42x = 39,737,205.14 × 15,742,233.96 - Step 4: Simplify right side
28,794,974.42x = 625,552,380,230,394.62 - Step 5: Solve for x
x = 625,552,380,230,394.62/28,794,974.42 - Step 6: Final answer
x = 21,724,359.64
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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.