Finding the Fourth Proportional to 13,120,591.12, 18,106,365.48 and 7,319,368.24
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Solution
The fourth proportional to 13,120,591.12, 18,106,365.48 and 7,319,368.24 is: 10,100,700.13
Step by Step Solution
- Step 1: Write the proportion equation
13,120,591.12 : 18,106,365.48 = 7,319,368.24 : x - Step 2: Convert to fraction form
13,120,591.12/18,106,365.48 = 7,319,368.24/x - Step 3: Cross multiply
13,120,591.12x = 18,106,365.48 × 7,319,368.24 - Step 4: Simplify right side
13,120,591.12x = 132,527,156,436,144.36 - Step 5: Solve for x
x = 132,527,156,436,144.36/13,120,591.12 - Step 6: Final answer
x = 10,100,700.13
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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.