Finding the Fourth Proportional to 13,134,438.80, 19,701,658.20 and 11,339,349.20
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Solution
The fourth proportional to 13,134,438.80, 19,701,658.20 and 11,339,349.20 is: 17,009,023.80
Step by Step Solution
- Step 1: Write the proportion equation
13,134,438.80 : 19,701,658.20 = 11,339,349.20 : x - Step 2: Convert to fraction form
13,134,438.80/19,701,658.20 = 11,339,349.20/x - Step 3: Cross multiply
13,134,438.80x = 19,701,658.20 × 11,339,349.20 - Step 4: Simplify right side
13,134,438.80x = 223,403,982,148,843.41 - Step 5: Solve for x
x = 223,403,982,148,843.41/13,134,438.80 - Step 6: Final answer
x = 17,009,023.80
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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.