Finding the Fourth Proportional to 11,437,972.96, 15,780,456.76 and 7,310,420.24
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Solution
The fourth proportional to 11,437,972.96, 15,780,456.76 and 7,310,420.24 is: 10,085,857.95
Step by Step Solution
- Step 1: Write the proportion equation
11,437,972.96 : 15,780,456.76 = 7,310,420.24 : x - Step 2: Convert to fraction form
11,437,972.96/15,780,456.76 = 7,310,420.24/x - Step 3: Cross multiply
11,437,972.96x = 15,780,456.76 × 7,310,420.24 - Step 4: Simplify right side
11,437,972.96x = 115,361,770,494,748.83 - Step 5: Solve for x
x = 115,361,770,494,748.83/11,437,972.96 - Step 6: Final answer
x = 10,085,857.95
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1.5x scale
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.