Finding the Fourth Proportional to 13,560,239.41, 18,713,267.72 and 7,365,407.09
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Solution
The fourth proportional to 13,560,239.41, 18,713,267.72 and 7,365,407.09 is: 10,164,336.38
Step by Step Solution
- Step 1: Write the proportion equation
13,560,239.41 : 18,713,267.72 = 7,365,407.09 : x - Step 2: Convert to fraction form
13,560,239.41/18,713,267.72 = 7,365,407.09/x - Step 3: Cross multiply
13,560,239.41x = 18,713,267.72 × 7,365,407.09 - Step 4: Simplify right side
13,560,239.41x = 137,830,834,741,956.12 - Step 5: Solve for x
x = 137,830,834,741,956.12/13,560,239.41 - Step 6: Final answer
x = 10,164,336.38
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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.