Finding the Fourth Proportional to 13,122,125.20, 19,683,187.80 and 10,252,343.80
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Solution
The fourth proportional to 13,122,125.20, 19,683,187.80 and 10,252,343.80 is: 15,378,515.70
Step by Step Solution
- Step 1: Write the proportion equation
13,122,125.20 : 19,683,187.80 = 10,252,343.80 : x - Step 2: Convert to fraction form
13,122,125.20/19,683,187.80 = 10,252,343.80/x - Step 3: Cross multiply
13,122,125.20x = 19,683,187.80 × 10,252,343.80 - Step 4: Simplify right side
13,122,125.20x = 201,798,808,405,565.66 - Step 5: Solve for x
x = 201,798,808,405,565.66/13,122,125.20 - Step 6: Final answer
x = 15,378,515.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.