Finding the Fourth Proportional to 13,532,084.20, 18,673,121.46 and 7,651,430.20
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Solution
The fourth proportional to 13,532,084.20, 18,673,121.46 and 7,651,430.20 is: 10,558,320.76
Step by Step Solution
- Step 1: Write the proportion equation
13,532,084.20 : 18,673,121.46 = 7,651,430.20 : x - Step 2: Convert to fraction form
13,532,084.20/18,673,121.46 = 7,651,430.20/x - Step 3: Cross multiply
13,532,084.20x = 18,673,121.46 × 7,651,430.20 - Step 4: Simplify right side
13,532,084.20x = 142,876,085,467,312.09 - Step 5: Solve for x
x = 142,876,085,467,312.09/13,532,084.20 - Step 6: Final answer
x = 10,558,320.76
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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.