Finding the Fourth Proportional to 15,036,298.24, 20,750,102.80 and 8,160,778.48
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Solution
The fourth proportional to 15,036,298.24, 20,750,102.80 and 8,160,778.48 is: 11,261,880.40
Step by Step Solution
- Step 1: Write the proportion equation
15,036,298.24 : 20,750,102.80 = 8,160,778.48 : x - Step 2: Convert to fraction form
15,036,298.24/20,750,102.80 = 8,160,778.48/x - Step 3: Cross multiply
15,036,298.24x = 20,750,102.80 × 8,160,778.48 - Step 4: Simplify right side
15,036,298.24x = 169,336,992,388,027.75 - Step 5: Solve for x
x = 169,336,992,388,027.75/15,036,298.24 - Step 6: Final answer
x = 11,261,880.40
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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.