Finding the Fourth Proportional to 13,642,870.50, 18,827,197.74 and 7,531,299
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Solution
The fourth proportional to 13,642,870.50, 18,827,197.74 and 7,531,299 is: 10,393,212.74
Step by Step Solution
- Step 1: Write the proportion equation
13,642,870.50 : 18,827,197.74 = 7,531,299 : x - Step 2: Convert to fraction form
13,642,870.50/18,827,197.74 = 7,531,299/x - Step 3: Cross multiply
13,642,870.50x = 18,827,197.74 × 7,531,299 - Step 4: Simplify right side
13,642,870.50x = 141,793,255,512,064.25 - Step 5: Solve for x
x = 141,793,255,512,064.25/13,642,870.50 - Step 6: Final answer
x = 10,393,212.74
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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.