Finding the Fourth Proportional to 13,331,775.88, 18,397,873.98 and 7,220,204.38
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Solution
The fourth proportional to 13,331,775.88, 18,397,873.98 and 7,220,204.38 is: 9,963,894.64
Step by Step Solution
- Step 1: Write the proportion equation
13,331,775.88 : 18,397,873.98 = 7,220,204.38 : x - Step 2: Convert to fraction form
13,331,775.88/18,397,873.98 = 7,220,204.38/x - Step 3: Cross multiply
13,331,775.88x = 18,397,873.98 × 7,220,204.38 - Step 4: Simplify right side
13,331,775.88x = 132,836,410,293,084.03 - Step 5: Solve for x
x = 132,836,410,293,084.03/13,331,775.88 - Step 6: Final answer
x = 9,963,894.64
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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.