Finding the Fourth Proportional to 72,006,286.08, 107,997,246.75 and 20,178,960.62
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Solution
The fourth proportional to 72,006,286.08, 107,997,246.75 and 20,178,960.62 is: 30,265,026.95
Step by Step Solution
- Step 1: Write the proportion equation
72,006,286.08 : 107,997,246.75 = 20,178,960.62 : x - Step 2: Convert to fraction form
72,006,286.08/107,997,246.75 = 20,178,960.62/x - Step 3: Cross multiply
72,006,286.08x = 107,997,246.75 × 20,178,960.62 - Step 4: Simplify right side
72,006,286.08x = 2,179,272,188,743,905.50 - Step 5: Solve for x
x = 2,179,272,188,743,905.50/72,006,286.08 - Step 6: Final answer
x = 30,265,026.95
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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.